diff --git a/.gitattributes b/.gitattributes index a6344aac8c09253b3b630fb776ae94478aa0275b..b2d812577ed0c13db6082216ff3b6f027c2ae751 100644 --- a/.gitattributes +++ b/.gitattributes @@ -33,3 +33,6 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text *.zip filter=lfs diff=lfs merge=lfs -text *.zst filter=lfs diff=lfs merge=lfs -text *tfevents* filter=lfs diff=lfs merge=lfs -text +docs/figures/pose.png filter=lfs diff=lfs merge=lfs -text +docs/figures/segmentation.png filter=lfs diff=lfs merge=lfs -text +model_without_OpenMMLab/segformer_plusplus/cityscape/berlin_000543_000019_leftImg8bit.png filter=lfs diff=lfs merge=lfs -text diff --git a/LICENSE.txt b/LICENSE.txt new file mode 100644 index 0000000000000000000000000000000000000000..3877ae0a7ff6f94ac222fd704e112723db776114 --- /dev/null +++ b/LICENSE.txt @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md index 6ddff2f305ace52cf0365e74625592c1a32ac0be..7f50ce4b9ce13801e05c3da31ea75b95eba1582b 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,93 @@ ---- -license: gpl-3.0 ---- +# SegFormer++ + +Paper: [Segformer++: Efficient Token-Merging Strategies for High-Resolution Semantic Segmentation](https://arxiv.org/abs/2405.14467) + +![image](docs/figures/segmentation.png) + +![image](docs/figures/pose.png) + +## Abstract + +Utilizing transformer architectures for semantic segmentation of high-resolution images is hindered by the attention's quadratic computational complexity in the number of tokens. A solution to this challenge involves decreasing the number of tokens through token merging, which has exhibited remarkable enhancements in inference speed, training efficiency, and memory utilization for image classification tasks. In this paper, we explore various token merging strategies within the framework of the SegFormer architecture and perform experiments on multiple semantic segmentation and human pose estimation datasets. Notably, without model re-training, we, for example, achieve an inference acceleration of 61% on the Cityscapes dataset while maintaining the mIoU performance. Consequently, this paper facilitates the deployment of transformer-based architectures on resource-constrained devices and in real-time applications. + +**Update:** It is now possible to load the model via torch.hub. See [here](docs/setup/torchhub_setup.md). + +**Update:** It is now possible to run the model **without OpenMMLab dependencies**, enabling users to utilize the SegFormerPlusPlus architecture without installing the full OpenMMLab framework. + +## Results and Models + +Memory refers to the VRAM requirements during the training process. + +### Inference on Cityscapes (MiT-B5) + +The weights of the Segformer (Original) model were used to get the inference results. + +| Method | mIoU | Speed-Up | config | download | +|-----------------------------------|------:|---------:|--------------------------------------------------------------------------------------------|----------------------------------------------------------------| +| Segformer (Original) | 82.39 | - | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-default.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | +| Segformer++HQ (ours) | 82.31 | 1.61 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-bsm-hq.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | +| Segformer++fast (ours) | 82.04 | 1.94 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-bsm-fast.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | +| Segformer++2x2 (ours) | 81.96 | 1.90 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-n2d-2x2.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | +| Segformer (Downsampling) | 77.31 | 6.51 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-downsample.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | + +### Training on Cityscapes (MiT-B5) + +| Method | mIoU | Speed-Up | Memory (GB) | config | download | +|-----------------------------------|------:|---------:|-------------|--------------------------------------------------------------------------------------------|-----------------------------------------------------------------| +| Segformer (Original) | 82.39 | - | 48.3 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-default.py) | [model](https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/) | +| Segformer++HQ (ours) | 82.19 | 1.40 | 34.0 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-bsm-hq.py) | [model](https://mediastore.rz.uni-augsburg.de/get/i8fY8uXJrV/ ) | +| Segformer++fast (ours) | 81.77 | 1.55 | 30.5 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-bsm-fast.py) | [model](https://mediastore.rz.uni-augsburg.de/get/cmG974iAxt/ ) | +| Segformer++2x2 (ours) | 82.38 | 1.63 | 31.1 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-n2d-2x2.py) | [model](https://mediastore.rz.uni-augsburg.de/get/p0uMKbw531/) | +| Segformer (Downsampling) | 79.24 | 2.95 | 10.0 | [config](mmsegmentation/local_configs/cityscapes/B5/segformer-cityscapes-b5-downsample.py) | [model](https://mediastore.rz.uni-augsburg.de/get/73zkKSO21t/) | + +### Training on ADE20K (640x640) (MiT-B5) + +| Method | mIoU | Speed-Up | Memory (GB) | config | download | +|-----------------------------------|------:|---------:|------------:|---------------------------------------------------------------------------------------|----------------------------------------------------------------| +| Segformer (Original) | 49.72 | - | 33.7 | [config](mmsegmentation/local_configs/ade20k/B5/segformer-ade20k640-b5-default.py) | [model](https://mediastore.rz.uni-augsburg.de/get/nKEjUHNAfK/) | +| Segformer++HQ (ours) | 49.77 | 1.15 | 29.2 | [config](mmsegmentation/local_configs/ade20k/B5/segformer-ade20k640-b5-bsm-hq.py) | [model](https://mediastore.rz.uni-augsburg.de/get/Odyie8usgj/) | +| Segformer++fast (ours) | 49.10 | 1.20 | 28.0 | [config](mmsegmentation/local_configs/ade20k/B5/segformer-ade20k640-b5-bsm-fast.py) | [model](https://mediastore.rz.uni-augsburg.de/get/K0IGkx4O2s/) | +| Segformer++2x2 (ours) | 49.35 | 1.26 | 27.2 | [config](mmsegmentation/local_configs/ade20k/B5/segformer-ade20k640-b5-n2d-2x2.py) | [model](https://mediastore.rz.uni-augsburg.de/get/w5_Pxx4Q5C/) | +| Segformer (Downsampling) | 46.71 | 1.89 | 12.4 | [config](mmsegmentation/local_configs/ade20k/B5/segformer-ade20k640-b5-downsample.py) | [model](https://mediastore.rz.uni-augsburg.de/get/dFVvZQL6iL/) | + +### Training on JBD + +| Method | PCK@0.1 | PCK@0.05 | Speed-Up | Memory (GB) | config | download | +|-----------------------------------|--------:|---------:|---------:|------------:|---------------------------------------------------------------------|----------------------------------------------------------------| +| Segformer (Original) | 95.20 | 90.65 | - | 40.0 | [config](mmpose/local_configs/jbd/B5/segformer-jump-b5-default.py) | [model](https://mediastore.rz.uni-augsburg.de/get/psolrWXLLp/) | +| Segformer++HQ (ours) | 95.18 | 90.51 | 1.19 | 36.0 | [config](mmpose/local_configs/jbd/B5/segformer-jump-b5-bsm-hq.py) | [model](https://mediastore.rz.uni-augsburg.de/get/jx1eyecMLF/) | +| Segformer++fast (ours) | 94.58 | 89.87 | 1.25 | 34.6 | [config](mmpose/local_configs/jbd/B5/segformer-jump-b5-bsm-fast.py) | [model](https://mediastore.rz.uni-augsburg.de/get/K0IGkx4O2s/) | +| Segformer++2x2 (ours) | 95.17 | 90.16 | 1.27 | 33.4 | [config](mmpose/local_configs/jbd/B5/segformer-jump-b5-n2d-2x2.py) | [model](https://mediastore.rz.uni-augsburg.de/get/HumKbSB1vI/) | + +### Training on MS COCO + +| Method | PCK@0.1 | PCK@0.05 | Speed-Up | Memory (GB) | config | download | +|-----------------------------------|--------:|---------:|---------:|------------:|----------------------------------------------------------------------|----------------------------------------------------------------| +| Segformer (Original) | 95.16 | 87.61 | - | 13.5 | [config](mmpose/local_configs/coco/B5/segformer-coco-b5-default.py) | [model](https://mediastore.rz.uni-augsburg.de/get/ZOgj2NmQLy/) | +| Segformer++HQ (ours) | 94.97 | 87.35 | 0.97 | 13.1 | [config](mmpose/local_configs/coco/B5/segformer-coco-b5-bsm-hq.py) | [model](https://mediastore.rz.uni-augsburg.de/get/oAH5IlPxG8/) | +| Segformer++fast (ours) | 95.02 | 87.37 | 0.99 | 12.9 | [config](mmpose/local_configs/coco/B5/segformer-coco-b5-bsm-fast.py) | [model](https://mediastore.rz.uni-augsburg.de/get/3E2mMNLAAn/) | +| Segformer++2x2 (ours) | 94.98 | 87.36 | 1.24 | 12.3 | [config](mmpose/local_configs/coco/B5/segformer-coco-b5-n2d-2x2.py) | [model](https://mediastore.rz.uni-augsburg.de/get/rzlgKC5XLc/) | + +## Usage + +Easy usage: +- [Use the SegFormer++ via TorchHub](docs/setup/torchhub_setup.md) +- [Use the SegFormer++ without OpenMMLab](docs/setup/noopenmmlab_setup.md) + +Legacy Variants. To use our models for semantic segmentation or 2D human pose estimation, please follow the installation instructions for MMSegmentation and MMPose respectively, which can be found in the documentation of the respective repositories. +- [Use the SegFormer++ with MMSegmentation](docs/setup/mmseg_setup.md) +- [Use the SegFormer++ with MMPose](docs/setup/mmpose_setup.md) +- [Use the SegFormer++ without MMSegmentation/MMPose](docs/setup/mmeng_setup.md) + +Explanation of the different token merging strategies: +- [Token Merging Settings](docs/run/token_merging.md) + +## Citation +```bibtex +@article{kienzle2024segformer++, + title={Segformer++: Efficient Token-Merging Strategies for High-Resolution Semantic Segmentation}, + author={Kienzle, Daniel and Kantonis, Marco and Sch{\"o}n, Robin and Lienhart, Rainer}, + journal={IEEE International Conference on Multimedia Information Processing and Retrieval (MIPR)}, + year={2024} +} +``` diff --git a/docs/figures/pose.png b/docs/figures/pose.png new file mode 100644 index 0000000000000000000000000000000000000000..52afa15146afc9770de5c6b08f47d94af44e1327 --- /dev/null +++ b/docs/figures/pose.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:1083548df4d741dd264b7f2c8c91278fa946b111b19f8f6ade26c0e2cf654540 +size 796528 diff --git a/docs/figures/segmentation.png b/docs/figures/segmentation.png new file mode 100644 index 0000000000000000000000000000000000000000..2e6668d1bd37210aed503d44d8022b0e14706c76 --- /dev/null +++ b/docs/figures/segmentation.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:dfabdd3fe1e70365875b9f1d8674772b2636db1431ed49ccf8551f4438c9939b +size 397894 diff --git a/docs/run/run_mmeng.md b/docs/run/run_mmeng.md new file mode 100644 index 0000000000000000000000000000000000000000..7b36aa9bd879a01a564f53de15052d7f3c6b405c --- /dev/null +++ b/docs/run/run_mmeng.md @@ -0,0 +1,15 @@ +# Use the SegFormer++ outside MMSegmentation/MMPose + +- Use [build_model.py](../../model/segformer/build_model.py) to build preset and custom SegFormer++ models + +```python +model = create_model('b5', 'bsm_hq', pretrained=True) +``` +Running this code snippet yields our SegFormer++HQ model pretrained on ImageNet. + +- Use [random_benchmark.py](../../model/segformer/random_benchmark.py) to evaluate a model in terms of FPS + +```python +v = random_benchmark(model) +``` +Calculate the FPS using our script. diff --git a/docs/run/run_mmpose.md b/docs/run/run_mmpose.md new file mode 100644 index 0000000000000000000000000000000000000000..6b3674a63efca09ec319be7e9bdca27b85251d5a --- /dev/null +++ b/docs/run/run_mmpose.md @@ -0,0 +1,23 @@ +# Run Experiments (MMPose) + +The configuration files for our models can be found here: + +- [Custom configuration files](../../mmpose/local_configs) + +## Training + +```shell +python tools/train.py 'path/to/config' +``` + +## Evaluation + +```shell +python tools/test.py 'path/to/config' 'path/to/checkpoint' +``` + +## FPS + +```shell +python tools/analysis_tools/random_benchmark.py -c 'path/to/config' -i 3x480x640 -b 16 +``` \ No newline at end of file diff --git a/docs/run/run_mmseg.md b/docs/run/run_mmseg.md new file mode 100644 index 0000000000000000000000000000000000000000..2804cc1c9087c801dcf537a3f050149d12c6023f --- /dev/null +++ b/docs/run/run_mmseg.md @@ -0,0 +1,23 @@ +# Run Experiments (MMSegmentation) + +The configuration files for our models can be found here: + +- [Custom configuration files](../../mmsegmentation/local_configs) + +## Training + +```shell +python tools/train.py 'path/to/config' +``` + +## Evaluation + +```shell +python tools/test.py 'path/to/config' 'path/to/checkpoint' +``` + +## FPS + +```shell +python tools/analysis_tools/random_benchmark.py -c 'path/to/config' -i 3x1024x1024 -b 8 +``` \ No newline at end of file diff --git a/docs/run/run_noopenmmlab.md b/docs/run/run_noopenmmlab.md new file mode 100644 index 0000000000000000000000000000000000000000..08cfcda311d559e469e0aadee7cc8639304b741c --- /dev/null +++ b/docs/run/run_noopenmmlab.md @@ -0,0 +1,137 @@ +# Use the SegFormer++ without OpenMMLab: + +## Building a Model + +- Use [build_model.py](../../model_without_OpenMMLab/segformer_plusplus/build_model.py) to build preset and custom SegFormer++ models + +Navigate to model_without_OpenMMLab. +```python +from segformer_plusplus.build_model import create_model +# backbone: choose from ['b0', 'b1', 'b2', 'b3', 'b4', 'b5'] +# tome_strategy: choose from ['bsm_hq', 'bsm_fast', 'n2d_2x2'] +out_channels = 19 # number of classes, e.g. 19 for cityscapes +model = create_model('b5', 'bsm_hq', out_channels=out_channels, pretrained=True) +``` +Running this code snippet yields our SegFormer++HQ model pretrained on ImageNet. + +- Use [random_benchmark.py](../../model_without_OpenMMLab/segformer_plusplus/random_benchmark.py) to evaluate a model in terms of FPS + +```python +from segformer_plusplus.random_benchmark import random_benchmark +v = random_benchmark(model) +``` +Calculate the FPS using our script. + +## Loading a Checkpoint + +[Checkpoints](../../README.md) are provided in this Repository. +They can be loaded and integrated into the model via PyTorch: +```python +import torch +checkpoint_path = "path_to_your_checkpoint.pth that you downloaded (links in Readme)" +checkpoint = torch.load(checkpoint_path) +model.load_state_dict(checkpoint) +``` +An Example can be found in [start_cityscape_benchmark.py](../../model_without_OpenMMLab/segformer_plusplus/start_cityscape_benchmark.py) + +## Image Preperation + +Images can be imported via PIL and then converted into RGB: + +```python +from PIL import Image +image_path = "path_to_your_image.png" +image = Image.open(image_path).convert("RGB") +``` + +After that, convert the image into a torch tensor: + +```python +import torch +import numpy as np + +img_tensor = torch.from_numpy(np.array(image) / 255.0) +img_tensor = img_tensor.permute(2, 0, 1).float().unsqueeze(0) # (1, C, H, W) +device = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu') +img_tensor = img_tensor.to(device) +``` + +Now we can load the model: + +```python +from segformer_plusplus.build_model import create_model + +out_channels = 19 +model = create_model( + backbone='b5', + tome_strategy='bsm_hq', + out_channels=out_channels, + pretrained=False +).to(device) + +model.load_state_dict(torch.load("path_to_checkpoint", map_location=device)) +model.eval() +``` + +Inference: +```python +with torch.no_grad(): + output = model(img_tensor) + segmentation_map = torch.argmax(output, dim=1).squeeze().cpu().numpy() +``` + +Visualize the results (this is for cityscapes classes): + +```python +import numpy as np + +# Official Cityscapes colors for train IDs 0-18 +cityscapes_colors = np.array([ + [128, 64, 128], # 0: road + [244, 35, 232], # 1: sidewalk + [ 70, 70, 70], # 2: building + [102, 102, 156], # 3: wall + [190, 153, 153], # 4: fence + [153, 153, 153], # 5: pole + [250, 170, 30], # 6: traffic light + [220, 220, 0], # 7: traffic sign + [107, 142, 35], # 8: vegetation + [152, 251, 152], # 9: terrain + [ 70, 130, 180], # 10: sky + [220, 20, 60], # 11: person + [255, 0, 0], # 12: rider + [ 0, 0, 142], # 13: car + [ 0, 0, 70], # 14: truck + [ 0, 60, 100], # 15: bus + [ 0, 80, 100], # 16: train + [ 0, 0, 230], # 17: motorcycle + [119, 11, 32], # 18: bicycle +], dtype=np.uint8) + +# Map each class to its corresponding color +height, width = segmentation_map.shape +color_image = np.zeros((height, width, 3), dtype=np.uint8) +for class_index in range(len(cityscapes_colors)): + color_image[segmentation_map == class_index] = cityscapes_colors[class_index] +``` + +Display and save output: +```python +import matplotlib.pyplot as plt + +plt.figure(figsize=(6, 6)) +plt.imshow(color_image) +plt.title("Semantic Segmentation Visualization") +plt.axis('off') +plt.show() +# Save the colorized output as an image - important when using a System without GUI +plt.imsave("segmentation_output.png", color_image) +``` + +> Note: You have to install matplotlib for visualization. + + +## Token-Merge Setting + +For information to the settings for the Token Merging look [here](../../docs/run/token_merging.md). + diff --git a/docs/run/token_merging.md b/docs/run/token_merging.md new file mode 100644 index 0000000000000000000000000000000000000000..1505705bd0c12950ec9873209242db4011359d75 --- /dev/null +++ b/docs/run/token_merging.md @@ -0,0 +1,50 @@ +## Specify Algorithms and Parameters for Token Merging + +In order for token merging to be applied, a list of python dictionary called *tome_cfg* must be added to the configuration file within the context of the SegFormer backbone. + +**Example** +Bipartite Soft Matching high quality preset: + +```python +model = dict( + backbone=dict( + tome_cfg=[ + dict(kv_mode='bsm', kv_r=0.6, kv_sx=2, kv_sy=2), # Stage 1 + dict(kv_mode='bsm', kv_r=0.6, kv_sx=2, kv_sy=2), # Stage 2 + dict(q_mode='bsm', q_r=0.8, q_sx=4, q_sy=4), # Stage 3 + dict(q_mode='bsm', q_r=0.8, q_sx=4, q_sy=4) # Stage 4 + ] + ) +) +``` + +Both a *q_mode* and a *kv_mode* can be specified for each stage. + +The following modes are available: + + +#### Bipartite Soft Matching (SegFormer++HQ and SegFormer++fast) +```python +dict(q_mode='bsm', q_scale_factor=0.8, q_sx=2, q_sy=2) +``` +This works in the same way as *bsm*. However, additionally *q_sx* and *q_sy* have to be specified that are the strides +used to select the tokens in the destination set. + +#### 1D Neighbour Merging +```python +dict(q_mode='n1d', q_s=2) +``` +The stride/kernel size employed for the average pooling has to be specified using the *q_scale_factor*. + +#### 2D Neighbour Merging +```python +dict(q_mode='n2d', q_s=(2, 2)) +``` +Here, two strides for both directions have to be specified. + +If token merging is applied for keys and values exclusively, the *q_mode* has to be set to *None* and the parameters +have to be specified for keys and values. It is also possible to merge the query tokens as well as the key and value tokens. +Therefore, parameters for both sequences have to be specified: +```python +dict(q_mode='n2d', kv_mode='bsm', q_s=(2, 2), kv_r=0.6, kv_sx=2, kv_sy=2) +``` \ No newline at end of file diff --git a/docs/setup/mmeng_setup.md b/docs/setup/mmeng_setup.md new file mode 100644 index 0000000000000000000000000000000000000000..02bdfc31eaff78e72adc0cf3c1788eaab158ae80 --- /dev/null +++ b/docs/setup/mmeng_setup.md @@ -0,0 +1,34 @@ +# Install the SegFormer++ without MMSegmentation/MMPose + +**Step 0.** Prerequisites + +- Pytorch: 2.3 (CUDA 12.1) (older versions should also work fine) + +**Step 1.** Install [MMCV](https://github.com/open-mmlab/mmcv) using [MIM](https://github.com/open-mmlab/mim). + +```shell +pip install -U openmim +mim install mmengine +mim install "mmcv>=2.0.0" +``` + +**Step 2.** Install Segformer++ + +```shell +cd model +pip install . +``` + +**Step 3.** [Run the SegFormer++](../run/run_mmeng.md) + + + +**Troubleshooting** +There might be installation troubles with openmim, mmengine, and mmcv for new python versions. Thus, Step 1 might not work correctly. +In this case, try the following alternative for step 1: +```shell +pip install torch torchvision numpy +pip install mmcv-full==1.2.7 +pip install mmcv +``` +If it is still not working, make sure to use a pip virtual environment (python -m venv "name of the environment"), not a conda environment. diff --git a/docs/setup/mmpose_setup.md b/docs/setup/mmpose_setup.md new file mode 100644 index 0000000000000000000000000000000000000000..c13988e9d803c4e14d29abfe9092874b54df81bb --- /dev/null +++ b/docs/setup/mmpose_setup.md @@ -0,0 +1,24 @@ +# MMSegmentation Setup + +**Step 0.** Prerequisites + +- Pytorch: 2.0.1 (CUDA 11.8) + +**Step 1.** Install [MMCV](https://github.com/open-mmlab/mmcv) using [MIM](https://github.com/open-mmlab/mim). + +```shell +pip install -U openmim +mim install mmengine +mim install "mmcv==2.0.0" +``` + +**Step 2.** Install MMPose + +```shell +# starting from the project root +cd mmpose +pip install -r requirements.txt +pip install -v -e . +``` + +**Step 3.** [Run the SegFormer++ using MMPose](../run/run_mmpose.md) \ No newline at end of file diff --git a/docs/setup/mmseg_setup.md b/docs/setup/mmseg_setup.md new file mode 100644 index 0000000000000000000000000000000000000000..e0a7717b1a5637712e4d61b4a56a8922a19323e0 --- /dev/null +++ b/docs/setup/mmseg_setup.md @@ -0,0 +1,25 @@ +# MMSegmentation Setup + +**Step 0.** Prerequisites + +- Pytorch: 2.0.1 (CUDA 11.8) + +**Step 1.** Install [MMCV](https://github.com/open-mmlab/mmcv) using [MIM](https://github.com/open-mmlab/mim). + +```shell +pip install -U openmim +mim install mmengine +mim install "mmcv==2.0.0" +``` + +**Step 2.** Install MMSegmentation + +```shell +# starting from the project root +cd mmsegmentation +pip install -v -e . +pip install -r requirements.txt +``` + +**Step 3.** [Run the SegFormer++ using MMSegmentation](../run/run_mmseg.md) + diff --git a/docs/setup/noopenmmlab_setup.md b/docs/setup/noopenmmlab_setup.md new file mode 100644 index 0000000000000000000000000000000000000000..38f50e26f4129d44b827e75eb926ab6c77a4d492 --- /dev/null +++ b/docs/setup/noopenmmlab_setup.md @@ -0,0 +1,15 @@ +# Install the SegFormer++ without OpenMMLab + +**Step 0.** Prerequisites + +- Pytorch: 2.3 (CUDA 12.1) (older versions should also work fine) +- Setup a virtual enviroment (optional, python -m venv "name of the environment") + +**Step 1.** Install Segformer++ + +```shell +cd model_without_OpenMMLab +pip install . +``` + +**Step 2.** [Run the SegFormer++](../run/run_noopenmmlab.md) diff --git a/docs/setup/torchhub_setup.md b/docs/setup/torchhub_setup.md new file mode 100644 index 0000000000000000000000000000000000000000..0519f7dd4d084f80313ef39e2bfd9b0f729460b2 --- /dev/null +++ b/docs/setup/torchhub_setup.md @@ -0,0 +1,139 @@ +# Using the SegFormer++ Model via PyTorch Hub + +This document explains how to use a pre-trained SegFormer++ model and its associated data transformations by loading them directly from a GitHub repository using PyTorch Hub. The process streamlines model access, making it easy to integrate the model into your projects with a simple one-liner. + +## Prerequisites + +Before running the script, ensure you have PyTorch installed. You also need to install the following dependencies, which are required by the model and its entry points: + +```bash +pip install tomesd omegaconf numpy rich yapf addict tqdm packaging torchvision +``` +## How It Works + +The provided Python script demonstrates a full workflow, from loading the model and transformations to running inference on a dummy image. + +## Step 1: Loading the Model + +You can easily load the model from torchhub. +The parameters are: +- `pretrained`: If set to True, it loads the model with pre-trained ImageNet weights. +- `backbone`: Specifies the backbone architecture (e.g., 'b5' for MiT-B5). Other options include 'b0', 'b1', 'b2', 'b3', and 'b4'. +- `tome_strategy`: Defines the token merging strategy. Options include 'bsm_hq' (high quality), 'bsm_fast' (faster), and 'n2d_2x2' (non-overlapping 2x2). +- `checkpoint_url`: A URL to a specific checkpoint file. This way you can load our trained model weights that you can find in the README. Make sure, that your weight fit to the model size and number of classes. +- `out_channels`: The number of output classes for segmentation (e.g., 19 for Cityscapes). + +```python +import torch +model = torch.hub.load( + 'KieDani/SegformerPlusPlus', + 'segformer_plusplus', + pretrained=True, + backbone='b5', + tome_strategy='bsm_hq', + checkpoint_url='https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/', # URL to checkpoints, optional + out_channels=19, +) +model.eval() # Set the model to evaluation mode +``` + +## Step 2: Loading Data Transformations + +The data_transforms entry point returns a torchvision.transforms.Compose object, which encapsulates the standard preprocessing steps required by the model (resizing and normalization). + +```python +# Load the data transformations +transform = torch.hub.load( + 'KieDani/SegformerPlusPlus', + 'data_transforms', +) +``` + +## Step 3: Preparing the Image and Running Inference + +After loading the model and transformations, you can apply them to an input image. The script creates a dummy image for this example, but in a real-world scenario, you would load an image from your file system. + +```python +from PIL import Image + +# In a real-world scenario, you would load your image here: +# image = Image.open('path_to_your_image.jpg').convert('RGB') +dummy_image = Image.new('RGB', (1300, 1300), color='red') + +# Apply the transformations +input_tensor = transform(dummy_image).unsqueeze(0) # Add a batch dimension + +# Run inference +with torch.no_grad(): + output = model(input_tensor) + +# Process the output tensor to get the final segmentation map +segmentation_map = torch.argmax(output.squeeze(0), dim=0) +``` + +The final segmentation_map is a tensor where each pixel value represents the predicted class (from 0 to 18). + +## Full Script + +Below is the complete, runnable script for your reference. + +```python +import torch.hub +from PIL import Image + +# --- IMPORTANT: TorchHub Dependencies --- +# Install the dependencies via: +# pip install tomesd omegaconf numpy rich yapf addict tqdm packaging torchvision + +# Load the SegFormer++ model with predefined parameters. +print("Loading SegFormer++ Model...") +# Replace 'your_username/your_repo' with the actual path to your repository +model = torch.hub.load( + 'KieDani/SegformerPlusPlus', # This is a placeholder, replace it with your actual GitHub path + 'segformer_plusplus', + pretrained=True, + backbone='b5', + tome_strategy='bsm_hq', + checkpoint_url='https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/', + out_channels=19, +) +model.eval() +print("Model loaded successfully.") + +# Load the data transformations via the 'data_transforms' entry point. +print("Loading data transformations...") +transform = torch.hub.load( + 'KieDani/SegformerPlusPlus', # Placeholder, replace it with your actual GitHub path + 'data_transforms', +) +print("Transformations loaded successfully.") + +# --- Example for Image Preparation and Inference --- +# Create a dummy image, as we don't need a real image file. +# In a real scenario, you would load an image from the hard drive, e.g. +# from PIL import Image +# image = Image.open('path_to_your_image.jpg').convert('RGB') +print("Creating a dummy image for demonstration...") +dummy_image = Image.new('RGB', (1300, 1300), color='red') +print("Original image size:", dummy_image.size) + +# Apply the transformations loaded from the Hub to the image. +print("Applying transformations to the image...") +input_tensor = transform(dummy_image).unsqueeze(0) # Adds a batch dimension +print("Transformed image tensor size:", input_tensor.shape) + +# Run inference. +print("Running inference...") +with torch.no_grad(): + output = model(input_tensor) + +# The output tensor has the shape [1, num_classes, height, width] +# We remove the batch dimension (1) +output_tensor = output.squeeze(0) + +print(f"\nInference completed. Output tensor size: {output_tensor.shape}") + +# To get the final segmentation map, you would use argmax. +segmentation_map = torch.argmax(output_tensor, dim=0) +print(f"Size of the generated segmentation map: {segmentation_map.shape}") +``` diff --git a/example_torchhub.py b/example_torchhub.py new file mode 100644 index 0000000000000000000000000000000000000000..ba97919b97204a3250c829ec3545d4382f600f30 --- /dev/null +++ b/example_torchhub.py @@ -0,0 +1,58 @@ +import torch.hub +from PIL import Image + +# --- IMPORTANT: TorchHub Dependencies --- +# Install the dependencies via: +# pip install tomesd omegaconf numpy rich yapf addict tqdm packaging torchvision + +# Load the SegFormer++ model with predefined parameters. +print("Loading SegFormer++ Model...") +# Replace 'your_username/your_repo' with the actual path to your repository +model = torch.hub.load( + 'KieDani/SegformerPlusPlus', + 'segformer_plusplus', + pretrained=True, + backbone='b5', + tome_strategy='bsm_hq', + checkpoint_url='https://mediastore.rz.uni-augsburg.de/get/yzE65lzm6N/', + out_channels=19, +) +model.eval() +print("Model loaded successfully.") + +# Load the data transformations via the 'data_transforms' entry point. +print("Loading data transformations...") +transform = torch.hub.load( + 'KieDani/SegformerPlusPlus', + 'data_transforms', +) +print("Transformations loaded successfully.") + +# --- Example for Image Preparation and Inference --- +# Create a dummy image, as we don't need a real image file. +# In a real scenario, you would load an image from the hard drive, e.g. +# from PIL import Image +# image = Image.open('path_to_your_image.jpg').convert('RGB') +print("Creating a dummy image for demonstration...") +dummy_image = Image.new('RGB', (1300, 1300), color='red') +print("Original image size:", dummy_image.size) + +# Apply the transformations loaded from the Hub to the image. +print("Applying transformations to the image...") +input_tensor = transform(dummy_image).unsqueeze(0) # Adds a batch dimension +print("Transformed image tensor size:", input_tensor.shape) + +# Run inference. +print("Running inference...") +with torch.no_grad(): + output = model(input_tensor) + +# The output tensor has the shape [1, num_classes, height, width] +# We remove the batch dimension (1) +output_tensor = output.squeeze(0) + +print(f"\nInference completed. Output tensor size: {output_tensor.shape}") + +# To get the final segmentation map, you would use argmax. +segmentation_map = torch.argmax(output_tensor, dim=0) +print(f"Size of the generated segmentation map: {segmentation_map.shape}") diff --git a/hubconf.py b/hubconf.py new file mode 100644 index 0000000000000000000000000000000000000000..398b0b6f1da27574864eda27683ae8b358386f0c --- /dev/null +++ b/hubconf.py @@ -0,0 +1,185 @@ +import sys +import os +import torch +import torchvision.transforms as T +from typing import List, Tuple +# Import the necessary functions for custom download +from torch.hub import download_url_to_file +import urllib.parse + +# --- WICHTIG: TorchHub Dependencies --- +# These are informational only. Users must install these packages. +dependencies = [ + 'tomesd', + 'omegaconf', + 'numpy', + 'rich', + 'yapf', + 'addict', + 'tqdm', + 'packaging', + 'torchvision' +] + +# Adds the path to the 'model_without_OpenMMLab' subdirectory to the sys.path list. +model_dir = os.path.join(os.path.dirname(__file__), 'model_without_OpenMMLab') +sys.path.insert(0, model_dir) + +# Imports all entry points from the subdirectory. +from segformer_plusplus.build_model import create_model +from segformer_plusplus.random_benchmark import random_benchmark + +# Removes the added path again to keep the sys.path list clean. +sys.path.pop(0) + + +def _get_local_cache_path(url: str, filename: str) -> str: + """ + Creates the full local path to the checkpoint file in the PyTorch Hub cache. + """ + # Retrieves the root folder of the PyTorch Hub cache (~/.cache/torch/) + torch_home = torch.hub._get_torch_home() + + # The default checkpoint directory + checkpoint_dir = os.path.join(torch_home, 'checkpoints') + os.makedirs(checkpoint_dir, exist_ok=True) + + # Adds a hash component for the URL to ensure uniqueness, + # as the URL itself does not contain a unique file name. + # We use the URL path as part of the hash. + url_path_hash = urllib.parse.quote_plus(url) + + # The final local file name, including the base name + URL hash. + local_filename = f"{filename}_{url_path_hash[:10]}.pt" + + return os.path.join(checkpoint_dir, local_filename) + + +# --- ENTRYPOINT 1: Main Model (ADJUSTED) --- +def segformer_plusplus( + backbone: str = 'b5', + tome_strategy: str = 'bsm_hq', + out_channels: int = 19, + pretrained: bool = True, + checkpoint_url: str = None, + **kwargs +) -> torch.nn.Module: + """ + Segformer++: Efficient Token-Merging Strategies for High-Resolution Semantic Segmentation. + + Loads a SegFormer++ model with the specified backbone and head architecture. + Install requirements via: + pip install tomesd omegaconf numpy rich yapf addict tqdm packaging torchvision + + Args: + backbone (str): The backbone type. Selectable from: ['b0', 'b1', 'b2', 'b3', 'b4', 'b5']. + tome_strategy (str): The token merging strategy. Selectable from: ['bsm_hq', 'bsm_fast', 'n2d_2x2']. + out_channels (int): Number of output classes (e.g., 19 for Cityscapes). + pretrained (bool): Whether to load the ImageNet pre-trained weights. + checkpoint_url (str, optional): A URL to a specific checkpoint. + **Important:** The download uses torch.hub.download_url_to_file(), + which may be required for non-direct links. + + Returns: + torch.nn.Module: The instantiated SegFormer++ model. + """ + model = create_model( + backbone=backbone, + tome_strategy=tome_strategy, + out_channels=out_channels, + pretrained=pretrained + ) + + if checkpoint_url: + # Generate a unique file path in the PyTorch cache + # We use the backbone name as part of the file name + local_filepath = _get_local_cache_path( + url=checkpoint_url, + filename=f"segformer_plusplus_{backbone}" + ) + + print(f"Attempting to load checkpoint from {checkpoint_url}...") + + if not os.path.exists(local_filepath): + # Use download_url_to_file for the non-direct download + try: + print(f"File not in cache. Downloading to {local_filepath}...") + + # This replaces load_state_dict_from_url and saves the file in the cache + download_url_to_file( + checkpoint_url, + local_filepath, + progress=True + ) + print("Download successful.") + + except Exception as e: + print(f"Error downloading checkpoint from {checkpoint_url}. Check the URL or use a direct asset link. Error: {e}") + # If the download fails, we return an un-loaded model + return model + + # Load the state dictionary from the downloaded file + try: + state_dict = torch.load(local_filepath, map_location='cpu') + + # Perform state_dict cleanup here if necessary, + # e.g., if the state is nested under a 'model' key + if 'state_dict' in state_dict: + state_dict = state_dict['state_dict'] + + model.load_state_dict(state_dict, strict=True) + print("Checkpoint loaded successfully.") + + except Exception as e: + print(f"Error loading state dict from file {local_filepath}: {e}") + # Again, return the un-loaded/ImageNet pre-trained model + print("The model was instantiated, but the checkpoint could not be loaded.") + + return model + + +# --- ENTRYPOINT 2: Data Processing --- +def data_transforms( + resolution: Tuple[int, int] = (1024, 1024), + mean: List[float] = [0.485, 0.456, 0.406], + std: List[float] = [0.229, 0.224, 0.225], +) -> T.Compose: + """ + Provides the appropriate data transformations for a given dataset. + + This function is an entry point to get the necessary preprocessing steps + for images based on typical ImageNet values. + + Args: + resolution (Tuple[int, int]): The desired size for the images (width, height). + Defaults to (1024, 1024). + mean (List[float]): The mean values for normalization. Defaults to the + ImageNet means. + std (List[float]): The standard deviations for normalization. Defaults to the + ImageNet standard deviations. + + Returns: + torchvision.transforms.Compose: A composition of transforms + that can be applied to input images. + + Example: + >>> # Load transforms with default parameters + >>> transform = torch.hub.load('user/repo_name', 'data_transforms') + >>> + >>> # Load transforms with resize to custom image resolution and default normalization + >>> transform_small = torch.hub.load('user/repo_name', 'data_transforms', resolution=(512, 512)) + """ + transform = T.Compose([ + T.Resize(resolution), + T.ToTensor(), + T.Normalize(mean=mean, std=std) + ]) + return transform + + +# --- ENTRYPOINT 3: Random Benchmark --- +def random_benchmark_entrypoint(**kwargs): + """ + Runs a random benchmark for SegFormer++. + """ + return random_benchmark(**kwargs) \ No newline at end of file diff --git a/model_without_OpenMMLab/pyproject.toml b/model_without_OpenMMLab/pyproject.toml new file mode 100644 index 0000000000000000000000000000000000000000..5d2ff5f9099e8bdbaa6274b7c3076343dfa3cf58 --- /dev/null +++ b/model_without_OpenMMLab/pyproject.toml @@ -0,0 +1,40 @@ +[build-system] +requires = ["setuptools>=61.0.0", "wheel"] +build-backend = "setuptools.build_meta" + +[project] +name = "segformer_plusplus" +version = "0.2" +authors = [ + {name = "Daniel Kienzle"}, +] +description = "Segformer++: Efficient Token-Merging Strategies for High-Resolution Semantic Segmentation" +license = {text = "MIT"} + +# Entspricht long_description +readme = "README.md" # Gehen wir davon aus, dass Sie eine README.md verwenden. + # Wenn Sie den Link aus der setup.py übernehmen möchten, + # nutzen Sie die Sektion [project.urls] (siehe unten). + +# Entspricht install_requires +dependencies = [ + "torch>=2.0.1", + "tomesd", + "omegaconf", + "pyyaml", + "numpy", + "rich", + "yapf", + "addict", + "tqdm", + "packaging", + "Pillow", + "torchvision", +] + +# Setuptools wird hier die Pakete automatisch finden (entspricht find_packages()) +# Solange keine packages/py_modules gesetzt sind, nutzt setuptools die automatische Paketerkennung. + +# Optional: Zusätzliche URLs, wenn Sie den arXiv-Link beibehalten möchten +[project.urls] +Documentation = "https://arxiv.org/abs/2405.14467" \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/__init__.py b/model_without_OpenMMLab/segformer_plusplus/Registry/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..0fb0d95a17590e973b9c750a21fab6fb91b151f5 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/Registry/__init__.py @@ -0,0 +1,3 @@ +from .registry import Registry + +__all__ = ["Registry"] diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..61b47fd77786c850bd4d0f241f0c1422b7e17b0d Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/default_scope.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/default_scope.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..a8754e03519a11f2e7c0e8a76a3846bb2c1e6a52 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/default_scope.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/registry.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/registry.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..8b2743ff6f4778b17ae839f5df4d8f04d99fa5b9 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/Registry/__pycache__/registry.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/default_scope.py b/model_without_OpenMMLab/segformer_plusplus/Registry/default_scope.py new file mode 100644 index 0000000000000000000000000000000000000000..dd957074ca671a90d0eb02224d9200efad055406 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/Registry/default_scope.py @@ -0,0 +1,95 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import copy +import time +from contextlib import contextmanager +from typing import Generator, Optional + +from ..utils.manager import ManagerMixin, _accquire_lock, _release_lock + + +class DefaultScope(ManagerMixin): + """Scope of current task used to reset the current registry, which can be + accessed globally. + + Consider the case of resetting the current ``Registry`` by + ``default_scope`` in the internal module which cannot access runner + directly, it is difficult to get the ``default_scope`` defined in + ``Runner``. However, if ``Runner`` created ``DefaultScope`` instance + by given ``default_scope``, the internal module can get + ``default_scope`` by ``DefaultScope.get_current_instance`` everywhere. + + Args: + name (str): Name of default scope for global access. + scope_name (str): Scope of current task. + + Examples: + >>> from mmengine.model import MODELS + >>> # Define default scope in runner. + >>> DefaultScope.get_instance('task', scope_name='mmdet') + >>> # Get default scope globally. + >>> scope_name = DefaultScope.get_instance('task').scope_name + """ + + def __init__(self, name: str, scope_name: str): + super().__init__(name) + assert isinstance( + scope_name, + str), (f'scope_name should be a string, but got {scope_name}') + self._scope_name = scope_name + + @property + def scope_name(self) -> str: + """ + Returns: + str: Get current scope. + """ + return self._scope_name + + @classmethod + def get_current_instance(cls) -> Optional['DefaultScope']: + """Get latest created default scope. + + Since default_scope is an optional argument for ``Registry.build``. + ``get_current_instance`` should return ``None`` if there is no + ``DefaultScope`` created. + + Examples: + >>> default_scope = DefaultScope.get_current_instance() + >>> # There is no `DefaultScope` created yet, + >>> # `get_current_instance` return `None`. + >>> default_scope = DefaultScope.get_instance( + >>> 'instance_name', scope_name='mmengine') + >>> default_scope.scope_name + mmengine + >>> default_scope = DefaultScope.get_current_instance() + >>> default_scope.scope_name + mmengine + + Returns: + Optional[DefaultScope]: Return None If there has not been + ``DefaultScope`` instance created yet, otherwise return the + latest created DefaultScope instance. + """ + _accquire_lock() + if cls._instance_dict: + instance = super().get_current_instance() + else: + instance = None + _release_lock() + return instance + + @classmethod + @contextmanager + def overwrite_default_scope(cls, scope_name: Optional[str]) -> Generator: + """Overwrite the current default scope with `scope_name`""" + if scope_name is None: + yield + else: + tmp = copy.deepcopy(cls._instance_dict) + # To avoid create an instance with the same name. + time.sleep(1e-6) + cls.get_instance(f'overwrite-{time.time()}', scope_name=scope_name) + try: + yield + finally: + cls._instance_dict = tmp diff --git a/model_without_OpenMMLab/segformer_plusplus/Registry/registry.py b/model_without_OpenMMLab/segformer_plusplus/Registry/registry.py new file mode 100644 index 0000000000000000000000000000000000000000..f9543651d003d02e87a817c7a7e967933046d247 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/Registry/registry.py @@ -0,0 +1,557 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import inspect +import sys +import types +from collections import abc +from collections.abc import Callable +from contextlib import contextmanager +from importlib import import_module +from typing import Any, Dict, Generator, List, Optional, Tuple, Type, Union +from rich.console import Console +from rich.table import Table + +from .default_scope import DefaultScope + + +MODULE2PACKAGE = { + 'mmcls': 'mmcls', + 'mmdet': 'mmdet', + 'mmdet3d': 'mmdet3d', + 'mmseg': 'mmsegmentation', + 'mmaction': 'mmaction2', + 'mmtrack': 'mmtrack', + 'mmpose': 'mmpose', + 'mmedit': 'mmedit', + 'mmocr': 'mmocr', + 'mmgen': 'mmgen', + 'mmfewshot': 'mmfewshot', + 'mmrazor': 'mmrazor', + 'mmflow': 'mmflow', + 'mmhuman3d': 'mmhuman3d', + 'mmrotate': 'mmrotate', + 'mmselfsup': 'mmselfsup', + 'mmyolo': 'mmyolo', + 'mmpretrain': 'mmpretrain', + 'mmagic': 'mmagic', +} + +class Registry: + """A registry to map strings to classes or functions. + + Registered object could be built from registry. Meanwhile, registered + functions could be called from registry. + + Args: + name (str): Registry name. + build_func (callable, optional): A function to construct instance + from Registry. :func:`build_from_cfg` is used if neither ``parent`` + or ``build_func`` is specified. If ``parent`` is specified and + ``build_func`` is not given, ``build_func`` will be inherited + from ``parent``. Defaults to None. + parent (:obj:`Registry`, optional): Parent registry. The class + registered in children registry could be built from parent. + Defaults to None. + scope (str, optional): The scope of registry. It is the key to search + for children registry. If not specified, scope will be the name of + the package where class is defined, e.g. mmdet, mmcls, mmseg. + Defaults to None. + locations (list): The locations to import the modules registered + in this registry. Defaults to []. + New in version 0.4.0. + """ + + def __init__(self, + name: str, + build_func: Optional[Callable] = None, + parent: Optional['Registry'] = None, + scope: Optional[str] = None, + locations: List = []): + self._name = name + self._module_dict: Dict[str, Type] = dict() + self._children: Dict[str, 'Registry'] = dict() + self._locations = locations + self._imported = False + + if scope is not None: + assert isinstance(scope, str) + self._scope = scope + else: + self._scope = self.infer_scope() + + self.parent: Optional['Registry'] + if parent is not None: + assert isinstance(parent, Registry) + parent._add_child(self) + self.parent = parent + else: + self.parent = None + + self.build_func: Callable + if build_func is None: + if self.parent is not None: + self.build_func = self.parent.build_func + else: + from ..utils.build_functions import build_from_cfg + self.build_func = build_from_cfg + else: + self.build_func = build_func + + def __len__(self): + return len(self._module_dict) + + def __contains__(self, key): + return self.get(key) is not None + + def __repr__(self): + table = Table(title=f'Registry of {self._name}') + table.add_column('Names', justify='left', style='cyan') + table.add_column('Objects', justify='left', style='green') + + for name, obj in sorted(self._module_dict.items()): + table.add_row(name, str(obj)) + + console = Console() + with console.capture() as capture: + console.print(table, end='') + + return capture.get() + + @staticmethod + def infer_scope() -> str: + """Infer the scope of registry. + + The name of the package where registry is defined will be returned. + + Returns: + str: The inferred scope name. + """ + module = inspect.getmodule(sys._getframe(2)) + if module is not None: + filename = module.__name__ + split_filename = filename.split('.') + scope = split_filename[0] + else: + scope = 'mmengine' + return scope + + @staticmethod + def split_scope_key(key: str) -> Tuple[Optional[str], str]: + """Split scope and key. + + The first scope will be split from key. + + Return: + tuple[str | None, str]: The former element is the first scope of + the key, which can be ``None``. The latter is the remaining key. + + """ + split_index = key.find('.') + if split_index != -1: + return key[:split_index], key[split_index + 1:] + else: + return None, key + + @property + def name(self): + return self._name + + @property + def scope(self): + return self._scope + + @property + def module_dict(self): + return self._module_dict + + @property + def children(self): + return self._children + + @property + def root(self): + return self._get_root_registry() + + @contextmanager + def switch_scope_and_registry(self, scope: Optional[str]) -> Generator: + """Temporarily switch default scope to the target scope, and get the + corresponding registry. + + If the registry of the corresponding scope exists, yield the + registry, otherwise yield the current itself. + + Args: + scope (str, optional): The target scope. + """ + + with DefaultScope.overwrite_default_scope(scope): + # Get the global default scope + default_scope = DefaultScope.get_current_instance() + # Get registry by scope + if default_scope is not None: + scope_name = default_scope.scope_name + try: + import_module(f'{scope_name}.registry') + except (ImportError, AttributeError, ModuleNotFoundError): + if scope in MODULE2PACKAGE: + print( + f'{scope} is not installed and its ' + 'modules will not be registered. If you ' + 'want to use modules defined in ' + f'{scope}, Please install {scope} by ' + f'`pip install {MODULE2PACKAGE[scope]}.') + else: + print( + f'Failed to import `{scope}.registry` ' + f'make sure the registry.py exists in `{scope}` ' + 'package.',) + root = self._get_root_registry() + registry = root._search_child(scope_name) + if registry is None: + print( + f'Failed to search registry with scope "{scope_name}" ' + f'in the "{root.name}" registry tree. ' + f'As a workaround, the current "{self.name}" registry ' + f'in "{self.scope}" is used to build instance. This ' + 'may cause unexpected failure when running the built ' + f'modules. Please check whether "{scope_name}" is a ' + 'correct scope, or whether the registry is ' + 'initialized.',) + registry = self + else: + registry = self + yield registry + + def _get_root_registry(self) -> 'Registry': + """Return the root registry.""" + root = self + while root.parent is not None: + root = root.parent + return root + + def import_from_location(self) -> None: + """Import modules from the pre-defined locations in self._location.""" + if not self._imported: + # avoid BC breaking + if len(self._locations) == 0 and self.scope in MODULE2PACKAGE: + print( + f'The "{self.name}" registry in {self.scope} did not ' + 'set import location. Fallback to call ' + f'`{self.scope}.utils.register_all_modules` ' + 'instead.',) + try: + module = import_module(f'{self.scope}.utils') + except (ImportError, AttributeError, ModuleNotFoundError): + if self.scope in MODULE2PACKAGE: + print( + f'{self.scope} is not installed and its ' + 'modules will not be registered. If you ' + 'want to use modules defined in ' + f'{self.scope}, Please install {self.scope} by ' + f'`pip install {MODULE2PACKAGE[self.scope]}.',) + else: + print( + f'Failed to import {self.scope} and register ' + 'its modules, please make sure you ' + 'have registered the module manually.',) + else: + module.register_all_modules(False) # type: ignore + + for loc in self._locations: + import_module(loc) + print( + f"Modules of {self.scope}'s {self.name} registry have " + f'been automatically imported from {loc}',) + self._imported = True + + def get(self, key: str) -> Optional[Type]: + """Get the registry record. + + If `key`` represents the whole object name with its module + information, for example, `mmengine.model.BaseModel`, ``get`` + will directly return the class object :class:`BaseModel`. + + Otherwise, it will first parse ``key`` and check whether it + contains a scope name. The logic to search for ``key``: + + - ``key`` does not contain a scope name, i.e., it is purely a module + name like "ResNet": :meth:`get` will search for ``ResNet`` from the + current registry to its parent or ancestors until finding it. + + - ``key`` contains a scope name and it is equal to the scope of the + current registry (e.g., "mmcls"), e.g., "mmcls.ResNet": :meth:`get` + will only search for ``ResNet`` in the current registry. + + - ``key`` contains a scope name and it is not equal to the scope of + the current registry (e.g., "mmdet"), e.g., "mmcls.FCNet": If the + scope exists in its children, :meth:`get` will get "FCNet" from + them. If not, :meth:`get` will first get the root registry and root + registry call its own :meth:`get` method. + + Args: + key (str): Name of the registered item, e.g., the class name in + string format. + + Returns: + Type or None: Return the corresponding class if ``key`` exists, + otherwise return None. + """ + + if not isinstance(key, str): + raise TypeError( + 'The key argument of `Registry.get` must be a str, ' + f'got {type(key)}') + + scope, real_key = self.split_scope_key(key) + obj_cls = None + registry_name = self.name + scope_name = self.scope + + # lazy import the modules to register them into the registry + self.import_from_location() + + if scope is None or scope == self._scope: + # get from self + if real_key in self._module_dict: + obj_cls = self._module_dict[real_key] + elif scope is None: + # try to get the target from its parent or ancestors + parent = self.parent + while parent is not None: + if real_key in parent._module_dict: + obj_cls = parent._module_dict[real_key] + registry_name = parent.name + scope_name = parent.scope + break + parent = parent.parent + else: + # import the registry to add the nodes into the registry tree + try: + import_module(f'{scope}.registry') + print( + f'Registry node of {scope} has been automatically ' + 'imported.',) + except (ImportError, AttributeError, ModuleNotFoundError): + print( + f'Cannot auto import {scope}.registry, please check ' + f'whether the package "{scope}" is installed correctly ' + 'or import the registry manually.',) + # get from self._children + if scope in self._children: + obj_cls = self._children[scope].get(real_key) + registry_name = self._children[scope].name + scope_name = scope + else: + root = self._get_root_registry() + + if scope != root._scope and scope not in root._children: + # If not skip directly, `root.get(key)` will recursively + # call itself until RecursionError is thrown. + pass + else: + obj_cls = root.get(key) + + if obj_cls is None: + try: + obj_cls = get_object_from_string(key) + except Exception: + raise RuntimeError(f'Failed to get {key}') + + if obj_cls is not None: + # For some rare cases (e.g. obj_cls is a partial function), obj_cls + # doesn't have `__name__`. Use default value to prevent error + cls_name = getattr(obj_cls, '__name__', str(obj_cls)) + return obj_cls + + def _search_child(self, scope: str) -> Optional['Registry']: + """Depth-first search for the corresponding registry in its children. + + Note that the method only search for the corresponding registry from + the current registry. Therefore, if we want to search from the root + registry, :meth:`_get_root_registry` should be called to get the + root registry first. + + Args: + scope (str): The scope name used for searching for its + corresponding registry. + + Returns: + Registry or None: Return the corresponding registry if ``scope`` + exists, otherwise return None. + """ + if self._scope == scope: + return self + + for child in self._children.values(): + registry = child._search_child(scope) + if registry is not None: + return registry + + return None + + def build(self, cfg: dict, *args, **kwargs) -> Any: + """Build an instance. + + Build an instance by calling :attr:`build_func`. + + Args: + cfg (dict): Config dict needs to be built. + + Returns: + Any: The constructed object. + """ + return self.build_func(cfg, *args, **kwargs, registry=self) + + def _add_child(self, registry: 'Registry') -> None: + """Add a child for a registry. + + Args: + registry (:obj:`Registry`): The ``registry`` will be added as a + child of the ``self``. + """ + + assert isinstance(registry, Registry) + assert registry.scope is not None + assert registry.scope not in self.children, \ + f'scope {registry.scope} exists in {self.name} registry' + self.children[registry.scope] = registry + + def _register_module(self, + module: Type, + module_name: Optional[Union[str, List[str]]] = None, + force: bool = False) -> None: + """Register a module. + + Args: + module (type): Module to be registered. Typically a class or a + function, but generally all ``Callable`` are acceptable. + module_name (str or list of str, optional): The module name to be + registered. If not specified, the class name will be used. + Defaults to None. + force (bool): Whether to override an existing class with the same + name. Defaults to False. + """ + if not callable(module): + raise TypeError(f'module must be Callable, but got {type(module)}') + + if module_name is None: + module_name = module.__name__ + if isinstance(module_name, str): + module_name = [module_name] + for name in module_name: + if not force and name in self._module_dict: + existed_module = self.module_dict[name] + raise KeyError(f'{name} is already registered in {self.name} ' + f'at {existed_module.__module__}') + self._module_dict[name] = module + + def register_module( + self, + name: Optional[Union[str, List[str]]] = None, + force: bool = False, + module: Optional[Type] = None) -> Union[type, Callable]: + """Register a module. + + A record will be added to ``self._module_dict``, whose key is the class + name or the specified name, and value is the class itself. + It can be used as a decorator or a normal function. + + Args: + name (str or list of str, optional): The module name to be + registered. If not specified, the class name will be used. + force (bool): Whether to override an existing class with the same + name. Defaults to False. + module (type, optional): Module class or function to be registered. + Defaults to None. + """ + if not isinstance(force, bool): + raise TypeError(f'force must be a boolean, but got {type(force)}') + + # raise the error ahead of time + if not (name is None or isinstance(name, str) or is_seq_of(name, str)): + raise TypeError( + 'name must be None, an instance of str, or a sequence of str, ' + f'but got {type(name)}') + + # use it as a normal method: x.register_module(module=SomeClass) + if module is not None: + self._register_module(module=module, module_name=name, force=force) + return module + + # use it as a decorator: @x.register_module() + def _register(module): + self._register_module(module=module, module_name=name, force=force) + return module + + return _register + + +def is_seq_of(seq: Any, + expected_type: Union[Type, tuple], + seq_type: Optional[Type] = None) -> bool: + """Check whether it is a sequence of some type. + + Args: + seq (Sequence): The sequence to be checked. + expected_type (type or tuple): Expected type of sequence items. + seq_type (type, optional): Expected sequence type. Defaults to None. + + Returns: + bool: Return True if ``seq`` is valid else False. + """ + if seq_type is None: + exp_seq_type = abc.Sequence + else: + assert isinstance(seq_type, type) + exp_seq_type = seq_type + if not isinstance(seq, exp_seq_type): + return False + for item in seq: + if not isinstance(item, expected_type): + return False + return True + + +def get_object_from_string(obj_name: str): + """Get object from name. + + Args: + obj_name (str): The name of the object. + """ + parts = iter(obj_name.split('.')) + module_name = next(parts) + # import module + while True: + try: + module = import_module(module_name) + part = next(parts) + # mmcv.ops has nms.py and nms function at the same time. So the + # function will have a higher priority + obj = getattr(module, part, None) + if obj is not None and not ismodule(obj): + break + module_name = f'{module_name}.{part}' + except StopIteration: + # if obj is a module + return module + except ImportError: + return None + + # get class or attribute from module + obj = module + while True: + try: + obj = getattr(obj, part) + part = next(parts) + except StopIteration: + return obj + except AttributeError: + return None + +def ismodule(object): + """Return true if the object is a module. + + Module objects provide these attributes: + __cached__ pathname to byte compiled file + __doc__ documentation string + __file__ filename (missing for built-in modules)""" + return isinstance(object, types.ModuleType) \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/__init__.py b/model_without_OpenMMLab/segformer_plusplus/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..c0d246258b63d193896f87abe85a843c70ed19dd --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/__init__.py @@ -0,0 +1,4 @@ +from .build_model import create_model, create_custom_model +from .random_benchmark import random_benchmark + +__all__ = ['create_model', 'create_custom_model', 'random_benchmark'] diff --git a/model_without_OpenMMLab/segformer_plusplus/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..7a3201de73eda281112cefe76c177d0ea19d37bd Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/__pycache__/build_model.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/__pycache__/build_model.cpython-310.pyc new file mode 100644 index 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.model.base_module import BaseModule +from .configs.config.config import Config +from .utils.build_functions import build_model_from_cfg + + +class SegFormer(BaseModule): + """ + This class represents a SegFormer model that allows for the application of token merging. + + Attributes: + backbone (BaseModule): MixVisionTransformer backbone + decode_head (BaseModule): SegFormer head + + """ + def __init__(self, cfg): + """ + Initialize the SegFormer model. + + Args: + cfg (Config): an mmengine Config object, which defines the backbone, head and token merging strategy used. + + """ + super().__init__() + self.backbone = build_model_from_cfg(cfg.backbone, registry=MODELS) + self.decode_head = build_model_from_cfg(cfg.decode_head, registry=MODELS) + + def forward(self, x): + """ + Forward pass of the model. + + Args: + x (torch.Tensor): input tensor of shape [B, C, H, W] + + Returns: + torch.Tensor: output tensor + + """ + x = self.backbone(x) + x = self.decode_head(x) + return x + + +def create_model( + backbone: str = 'b0', + tome_strategy: str = None, + out_channels: int = 19, + pretrained: bool = False, +): + """ + Create a SegFormer model using the predefined SegFormer backbones from the MiT series (b0-b5). + + Args: + backbone (str): backbone name (e.g. 'b0') + tome_strategy (str | list(dict)): select strategy from presets ('bsm_hq', 'bsm_fast', 'n2d_2x2') or define a + custom strategy using a list, that contains of dictionaries, in which the strategies for the stage are + defined + out_channels (int): number of output channels (e.g. 19 for the cityscapes semantic segmentation task) + pretrained: use pretrained (imagenet) weights + + Returns: + BaseModule: SegFormer model + + """ + backbone = backbone.lower() + assert backbone in [f'b{i}' for i in range(6)] + + wd = os.path.dirname(os.path.abspath(__file__)) + + cfg = Config.fromfile(os.path.join(wd, 'configs', f'segformer_mit_{backbone}.py')) + + cfg.decode_head.out_channels = out_channels + + if tome_strategy is not None: + if tome_strategy not in list(tome_presets.keys()): + print("Using custom merging strategy.") + cfg.backbone.tome_cfg = tome_presets[tome_strategy] + + # load imagenet weights + if pretrained: + cfg.backbone.init_cfg = dict(type='Pretrained', checkpoint=imagenet_weights[backbone]) + + return SegFormer(cfg) + + +def create_custom_model( + model_cfg: Config, + tome_strategy: list[dict] = None, +): + """ + Create a SegFormer model with customizable backbone and head. + + Args: + model_cfg (Config): backbone name (e.g. 'b0') + tome_strategy (list(dict)): custom token merging strategy + + Returns: + BaseModule: SegFormer model + + """ + if tome_strategy is not None: + model_cfg.backbone.tome_cfg = tome_strategy + + return SegFormer(model_cfg) diff --git a/model_without_OpenMMLab/segformer_plusplus/cityscape/berlin_000543_000019_leftImg8bit.png b/model_without_OpenMMLab/segformer_plusplus/cityscape/berlin_000543_000019_leftImg8bit.png new file mode 100644 index 0000000000000000000000000000000000000000..ab033fdc22ea75241c92137c9ee6b5133e793474 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/cityscape/berlin_000543_000019_leftImg8bit.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:3d616adab2c462fdee7f47a2de927436aebfb73843c38c3e3fbc85a6220955d4 +size 2365916 diff --git a/model_without_OpenMMLab/segformer_plusplus/cityscape_benchmark.py b/model_without_OpenMMLab/segformer_plusplus/cityscape_benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..748740dfc5d140abbca7e3cf56751a7a7eb15ba9 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/cityscape_benchmark.py @@ -0,0 +1,108 @@ +import torch +from PIL import Image +import torchvision.transforms as T +import os +from typing import Union, List, Tuple +import numpy as np + +from .utils.benchmark import benchmark + + +# Gerät auswählen +device = torch.device('cuda' if torch.cuda.is_available() else 'cpu') +print(f"Using device: {device}") +if device.type == 'cuda': + print(f"CUDA Device Name: {torch.cuda.get_device_name(torch.cuda.current_device())}") + +def cityscape_benchmark( + model: torch.nn.Module, + image_path: str, + batch_size: Union[int, List[int]] = 1, + image_size: Union[Tuple[int], List[Tuple[int]]] = (3, 1024, 1024), + save_output: bool = True, + +): + """ + Calculate the FPS of a given model using an actual Cityscapes image. + + Args: + model: instance of a model (e.g. SegFormer) + image_path: the path to the Cityscapes image + batch_size: the batch size(s) at which to calculate the FPS (e.g. 1 or [1, 2, 4]) + image_size: the size of the images to use (e.g. (3, 1024, 1024)) + save_output: whether to save the output prediction (default True) + + Returns: + the FPS values calculated for all image sizes and batch sizes in the form of a dictionary + """ + + + if isinstance(batch_size, int): + batch_size = [batch_size] + if isinstance(image_size, tuple): + image_size = [image_size] + + values = {} + throughput_values = [] + + model = model.to(device) + model.eval() + + assert os.path.exists(image_path), f"Image not found: {image_path}" + image = Image.open(image_path).convert("RGB") + + img_tensor = T.ToTensor()(image) + mean = img_tensor.mean(dim=(1, 2)) + std = img_tensor.std(dim=(1, 2)) + print(f"Calculated Mean: {mean}") + print(f"Calculated Std: {std}") + + transform = T.Compose([ + T.Resize((image_size[0][1], image_size[0][2])), + T.ToTensor(), + T.Normalize(mean=mean.tolist(), + std=std.tolist()) + ]) + + img_tensor = transform(image).unsqueeze(0).to(device) + + for i in image_size: + # fill with fps for each batch size + fps = [] + for b in batch_size: + for _ in range(4): + # Baseline benchmark + if i[1] >= 1024: + r = 16 + else: + r = 32 + baseline_throughput = benchmark( + model.to(device), + device=device, + verbose=True, + runs=r, + batch_size=b, + input_size=i + ) + throughput_values.append(baseline_throughput) + throughput_values = np.asarray(throughput_values) + throughput = np.around(np.mean(throughput_values), decimals=2) + print('Im_size:', i, 'Batch_size:', b, 'Mean:', throughput, 'Std:', + np.around(np.std(throughput_values), decimals=2)) + throughput_values = [] + fps.append({b: throughput}) + values[i] = fps + + if save_output: + with torch.no_grad(): + output = model(img_tensor) + pred = torch.argmax(output, dim=1).squeeze(0).cpu().numpy() + + # Speichere Prediction als Text ab + cwd = os.getcwd() + output_path = os.path.join(cwd, 'segformer_plusplus', 'cityscapes_prediction_output.txt') + np.savetxt(output_path, pred, fmt="%d") + + print("Prediction saved as cityscapes_prediction_output.txt") + + return values diff --git a/model_without_OpenMMLab/segformer_plusplus/cityscapes_prediction_output.txt b/model_without_OpenMMLab/segformer_plusplus/cityscapes_prediction_output.txt new file mode 100644 index 0000000000000000000000000000000000000000..b1d9fd79e3ed7d99979138d1e40b11f155b15f76 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/cityscapes_prediction_output.txt @@ -0,0 +1,256 @@ +8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 8 8 8 8 8 8 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 +8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 8 8 8 8 8 8 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 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@@ +__all__ = [] \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/configs/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..a1b9b65214f47ff291ecacfc70fe75222fc1da52 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/configs/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/config.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/config.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..5d59430296064ac86d2adc608ee3d1c929ddeaa3 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/config.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/lazy.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/lazy.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..a1489a6700e7532ba6af6c0ff3e8e368f2d97f32 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/lazy.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/utils.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/utils.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..2b72a185cf8fae3e87ca8328748077accbfb5139 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/configs/config/__pycache__/utils.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/config.py b/model_without_OpenMMLab/segformer_plusplus/configs/config/config.py new file mode 100644 index 0000000000000000000000000000000000000000..3b8c5ffe6bc01abf2528980e58059a801a30263c --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/config/config.py @@ -0,0 +1,1545 @@ +import ast +import copy +import os +import os.path as osp +import platform +import shutil +import sys +import tempfile +import types +import uuid +import re +import warnings +from argparse import ArgumentParser +from collections import OrderedDict, abc +from pathlib import Path +from typing import Any, Optional, Tuple, Union +from omegaconf import OmegaConf +import yapf +from addict import Dict +from yapf.yapflib.yapf_api import FormatCode + +from .lazy import LazyAttr, LazyObject +from .utils import (check_file_exist, get_installed_path, import_modules_from_strings, is_installed, RemoveAssignFromAST, + ImportTransformer, _gather_abs_import_lazyobj, _get_external_cfg_base_path, + _get_external_cfg_path, _get_package_and_cfg_path, _is_builtin_module, dump) + + +BASE_KEY = '_base_' +DELETE_KEY = '_delete_' +DEPRECATION_KEY = '_deprecation_' +RESERVED_KEYS = ['filename', 'text', 'pretty_text', 'env_variables'] + + +def _lazy2string(cfg_dict, dict_type=None): + if isinstance(cfg_dict, dict): + dict_type = dict_type or type(cfg_dict) + return dict_type( + {k: _lazy2string(v, dict_type) + for k, v in dict.items(cfg_dict)}) + elif isinstance(cfg_dict, (tuple, list)): + return type(cfg_dict)(_lazy2string(v, dict_type) for v in cfg_dict) + elif isinstance(cfg_dict, (LazyAttr, LazyObject)): + return f'{cfg_dict.module}.{str(cfg_dict)}' + else: + return cfg_dict + + +class ConfigDict(Dict): + """A dictionary for config which has the same interface as python's built- + in dictionary and can be used as a normal dictionary. + + The Config class would transform the nested fields (dictionary-like fields) + in config file into ``ConfigDict``. + + If the class attribute ``lazy`` is ``False``, users will get the + object built by ``LazyObject`` or ``LazyAttr``, otherwise users will get + the ``LazyObject`` or ``LazyAttr`` itself. + + The ``lazy`` should be set to ``True`` to avoid building the imported + object during configuration parsing, and it should be set to False outside + the Config to ensure that users do not experience the ``LazyObject``. + """ + lazy = False + + def __init__(__self, *args, **kwargs): + object.__setattr__(__self, '__parent', kwargs.pop('__parent', None)) + object.__setattr__(__self, '__key', kwargs.pop('__key', None)) + object.__setattr__(__self, '__frozen', False) + for arg in args: + if not arg: + continue + # Since ConfigDict.items will convert LazyObject to real object + # automatically, we need to call super().items() to make sure + # the LazyObject will not be converted. + if isinstance(arg, ConfigDict): + for key, val in dict.items(arg): + __self[key] = __self._hook(val) + elif isinstance(arg, dict): + for key, val in arg.items(): + __self[key] = __self._hook(val) + elif isinstance(arg, tuple) and (not isinstance(arg[0], tuple)): + __self[arg[0]] = __self._hook(arg[1]) + else: + for key, val in iter(arg): + __self[key] = __self._hook(val) + + for key, val in dict.items(kwargs): + __self[key] = __self._hook(val) + + def __missing__(self, name): + raise KeyError(name) + + def __getattr__(self, name): + try: + value = super().__getattr__(name) + if isinstance(value, (LazyAttr, LazyObject)) and not self.lazy: + value = value.build() + except KeyError: + raise AttributeError(f"'{self.__class__.__name__}' object has no " + f"attribute '{name}'") + except Exception as e: + raise e + else: + return value + + @classmethod + def _hook(cls, item): + # avoid to convert user defined dict to ConfigDict. + if type(item) in (dict, OrderedDict): + return cls(item) + elif isinstance(item, (list, tuple)): + return type(item)(cls._hook(elem) for elem in item) + return item + + def __setattr__(self, name, value): + value = self._hook(value) + return super().__setattr__(name, value) + + def __setitem__(self, name, value): + value = self._hook(value) + return super().__setitem__(name, value) + + def __getitem__(self, key): + return self.build_lazy(super().__getitem__(key)) + + def __deepcopy__(self, memo): + other = self.__class__() + memo[id(self)] = other + for key, value in super().items(): + other[copy.deepcopy(key, memo)] = copy.deepcopy(value, memo) + return other + + def __copy__(self): + other = self.__class__() + for key, value in super().items(): + other[key] = value + return other + + copy = __copy__ + + def __iter__(self): + # Implement `__iter__` to overwrite the unpacking operator `**cfg_dict` + # to get the built lazy object + return iter(self.keys()) + + def get(self, key: str, default: Optional[Any] = None) -> Any: + """Get the value of the key. If class attribute ``lazy`` is True, the + LazyObject will be built and returned. + + Args: + key (str): The key. + default (any, optional): The default value. Defaults to None. + + Returns: + Any: The value of the key. + """ + return self.build_lazy(super().get(key, default)) + + def pop(self, key, default=None): + """Pop the value of the key. If class attribute ``lazy`` is True, the + LazyObject will be built and returned. + + Args: + key (str): The key. + default (any, optional): The default value. Defaults to None. + + Returns: + Any: The value of the key. + """ + return self.build_lazy(super().pop(key, default)) + + def update(self, *args, **kwargs) -> None: + """Override this method to make sure the LazyObject will not be built + during updating.""" + other = {} + if args: + if len(args) > 1: + raise TypeError('update only accept one positional argument') + # Avoid to used self.items to build LazyObject + for key, value in dict.items(args[0]): + other[key] = value + + for key, value in dict(kwargs).items(): + other[key] = value + for k, v in other.items(): + if ((k not in self) or (not isinstance(self[k], dict)) + or (not isinstance(v, dict))): + self[k] = self._hook(v) + else: + self[k].update(v) + + def build_lazy(self, value: Any) -> Any: + """If class attribute ``lazy`` is False, the LazyObject will be built + and returned. + + Args: + value (Any): The value to be built. + + Returns: + Any: The built value. + """ + if isinstance(value, (LazyAttr, LazyObject)) and not self.lazy: + value = value.build() + return value + + def values(self): + """Yield the values of the dictionary. + + If class attribute ``lazy`` is False, the value of ``LazyObject`` or + ``LazyAttr`` will be built and returned. + """ + values = [] + for value in super().values(): + values.append(self.build_lazy(value)) + return values + + def items(self): + """Yield the keys and values of the dictionary. + + If class attribute ``lazy`` is False, the value of ``LazyObject`` or + ``LazyAttr`` will be built and returned. + """ + items = [] + for key, value in super().items(): + items.append((key, self.build_lazy(value))) + return items + + def merge(self, other: dict): + """Merge another dictionary into current dictionary. + + Args: + other (dict): Another dictionary. + """ + default = object() + + def _merge_a_into_b(a, b): + if isinstance(a, dict): + if not isinstance(b, dict): + a.pop(DELETE_KEY, None) + return a + if a.pop(DELETE_KEY, False): + b.clear() + all_keys = list(b.keys()) + list(a.keys()) + return { + key: + _merge_a_into_b(a.get(key, default), b.get(key, default)) + for key in all_keys if key != DELETE_KEY + } + else: + return a if a is not default else b + + merged = _merge_a_into_b(copy.deepcopy(other), copy.deepcopy(self)) + self.clear() + for key, value in merged.items(): + self[key] = value + + def __reduce_ex__(self): + # Override __reduce_ex__ to avoid `self.items` will be + # called by CPython interpreter during pickling. See more details in + # https://github.com/python/cpython/blob/8d61a71f9c81619e34d4a30b625922ebc83c561b/Objects/typeobject.c#L6196 # noqa: E501 + from ...utils import digit_version + if digit_version(platform.python_version()) < digit_version('3.8'): + return (self.__class__, ({k: v + for k, v in super().items()}, ), None, + None, None) + else: + return (self.__class__, ({k: v + for k, v in super().items()}, ), None, + None, None, None) + + def __eq__(self, other): + if isinstance(other, ConfigDict): + return other.to_dict() == self.to_dict() + elif isinstance(other, dict): + return {k: v for k, v in self.items()} == other + else: + return False + + def _to_lazy_dict(self): + """Convert the ConfigDict to a normal dictionary recursively, and keep + the ``LazyObject`` or ``LazyAttr`` object not built.""" + + def _to_dict(data): + if isinstance(data, ConfigDict): + return { + key: _to_dict(value) + for key, value in Dict.items(data) + } + elif isinstance(data, dict): + return {key: _to_dict(value) for key, value in data.items()} + elif isinstance(data, (list, tuple)): + return type(data)(_to_dict(item) for item in data) + else: + return data + + return _to_dict(self) + + def to_dict(self): + """Convert the ConfigDict to a normal dictionary recursively, and + convert the ``LazyObject`` or ``LazyAttr`` to string.""" + return _lazy2string(self, dict_type=dict) + + +def add_args(parser: ArgumentParser, + cfg: dict, + prefix: str = '') -> ArgumentParser: + """Add config fields into argument parser. + + Args: + parser (ArgumentParser): Argument parser. + cfg (dict): Config dictionary. + prefix (str, optional): Prefix of parser argument. + Defaults to ''. + + Returns: + ArgumentParser: Argument parser containing config fields. + """ + for k, v in cfg.items(): + if isinstance(v, str): + parser.add_argument('--' + prefix + k) + elif isinstance(v, bool): + parser.add_argument('--' + prefix + k, action='store_true') + elif isinstance(v, int): + parser.add_argument('--' + prefix + k, type=int) + elif isinstance(v, float): + parser.add_argument('--' + prefix + k, type=float) + elif isinstance(v, dict): + add_args(parser, v, prefix + k + '.') + elif isinstance(v, abc.Iterable): + parser.add_argument( + '--' + prefix + k, type=type(next(iter(v))), nargs='+') + return parser + + +class Config: + """A facility for config and config files. + + It supports common file formats as configs: python/json/yaml. + ``Config.fromfile`` can parse a dictionary from a config file, then + build a ``Config`` instance with the dictionary. + The interface is the same as a dict object and also allows access config + values as attributes. + + Args: + cfg_dict (dict, optional): A config dictionary. Defaults to None. + cfg_text (str, optional): Text of config. Defaults to None. + filename (str or Path, optional): Name of config file. + Defaults to None. + format_python_code (bool): Whether to format Python code by yapf. + Defaults to True. + """ # noqa: E501 + + def __init__( + self, + cfg_dict: Optional[dict] = None, + cfg_text: Optional[str] = None, + filename: Optional[Union[str, Path]] = None, + env_variables: Optional[dict] = None, + format_python_code: bool = True, + ): + filename = str(filename) if isinstance(filename, Path) else filename + if cfg_dict is None: + cfg_dict = dict() + elif not isinstance(cfg_dict, dict): + raise TypeError('cfg_dict must be a dict, but ' + f'got {type(cfg_dict)}') + for key in cfg_dict: + if key in RESERVED_KEYS: + raise KeyError(f'{key} is reserved for config file') + + if not isinstance(cfg_dict, ConfigDict): + cfg_dict = ConfigDict(cfg_dict) + super().__setattr__('_cfg_dict', cfg_dict) + super().__setattr__('_filename', filename) + super().__setattr__('_format_python_code', format_python_code) + if not hasattr(self, '_imported_names'): + super().__setattr__('_imported_names', set()) + + if cfg_text: + text = cfg_text + elif filename: + with open(filename, encoding='utf-8') as f: + text = f.read() + else: + text = '' + super().__setattr__('_text', text) + if env_variables is None: + env_variables = dict() + super().__setattr__('_env_variables', env_variables) + + @staticmethod + def fromfile(filename: Union[str, Path], + use_predefined_variables: bool = True, + import_custom_modules: bool = True, + use_environment_variables: bool = True, + lazy_import: Optional[bool] = None, + format_python_code: bool = True) -> 'Config': + """Build a Config instance from config file. + + Args: + filename (str or Path): Name of config file. + use_predefined_variables (bool, optional): Whether to use + predefined variables. Defaults to True. + import_custom_modules (bool, optional): Whether to support + importing custom modules in config. Defaults to None. + use_environment_variables (bool, optional): Whether to use + environment variables. Defaults to True. + lazy_import (bool): Whether to load config in `lazy_import` mode. + If it is `None`, it will be deduced by the content of the + config file. Defaults to None. + format_python_code (bool): Whether to format Python code by yapf. + Defaults to True. + + Returns: + Config: Config instance built from config file. + """ + filename = str(filename) if isinstance(filename, Path) else filename + if lazy_import is False or \ + lazy_import is None and not Config._is_lazy_import(filename): + cfg_dict, cfg_text, env_variables = Config._file2dict( + filename, use_predefined_variables, use_environment_variables, + lazy_import) + if import_custom_modules and cfg_dict.get('custom_imports', None): + try: + import_modules_from_strings(**cfg_dict['custom_imports']) + except ImportError as e: + err_msg = ( + 'Failed to import custom modules from ' + f"{cfg_dict['custom_imports']}, the current sys.path " + 'is: ') + for p in sys.path: + err_msg += f'\n {p}' + err_msg += ( + '\nYou should set `PYTHONPATH` to make `sys.path` ' + 'include the directory which contains your custom ' + 'module') + raise ImportError(err_msg) from e + return Config( + cfg_dict, + cfg_text=cfg_text, + filename=filename, + env_variables=env_variables, + ) + else: + # Enable lazy import when parsing the config. + # Using try-except to make sure ``ConfigDict.lazy`` will be reset + # to False. See more details about lazy in the docstring of + # ConfigDict + ConfigDict.lazy = True + try: + cfg_dict, imported_names = Config._parse_lazy_import(filename) + except Exception as e: + raise e + finally: + # disable lazy import to get the real type. See more details + # about lazy in the docstring of ConfigDict + ConfigDict.lazy = False + + cfg = Config( + cfg_dict, + filename=filename, + format_python_code=format_python_code) + object.__setattr__(cfg, '_imported_names', imported_names) + return cfg + + @staticmethod + def _get_base_modules(nodes: list) -> list: + """Get base module name from parsed code. + + Args: + nodes (list): Parsed code of the config file. + + Returns: + list: Name of base modules. + """ + + def _get_base_module_from_with(with_nodes: list) -> list: + """Get base module name from if statement in python file. + + Args: + with_nodes (list): List of if statement. + + Returns: + list: Name of base modules. + """ + base_modules = [] + for node in with_nodes: + assert isinstance(node, ast.ImportFrom), ( + 'Illegal syntax in config file! Only ' + '`from ... import ...` could be implemented` in ' + 'with read_base()`') + assert node.module is not None, ( + 'Illegal syntax in config file! Syntax like ' + '`from . import xxx` is not allowed in `with read_base()`') + base_modules.append(node.level * '.' + node.module) + return base_modules + + for idx, node in enumerate(nodes): + if (isinstance(node, ast.Assign) + and isinstance(node.targets[0], ast.Name) + and node.targets[0].id == BASE_KEY): + raise SyntaxError( + 'The configuration file type in the inheritance chain ' + 'must match the current configuration file type, either ' + '"lazy_import" or non-"lazy_import". You got this error ' + f'since you use the syntax like `_base_ = "{node.targets[0].id}"` ' # noqa: E501 + 'in your config. You should use `with read_base(): ... to` ' # noqa: E501 + 'mark the inherited config file. See more information '# noqa: E501 + ) + + if not isinstance(node, ast.With): + continue + + expr = node.items[0].context_expr + if (not isinstance(expr, ast.Call) + or not expr.func.id == 'read_base' or # type: ignore + len(node.items) > 1): + raise SyntaxError( + 'Only `read_base` context manager can be used in the ' + 'config') + for nested_idx, nested_node in enumerate(node.body): + nodes.insert(idx + nested_idx + 1, nested_node) + nodes.pop(idx) + return _get_base_module_from_with(node.body) + return [] + + @staticmethod + def _validate_py_syntax(filename: str): + """Validate syntax of python config. + + Args: + filename (str): Filename of python config file. + """ + with open(filename, encoding='utf-8') as f: + content = f.read() + try: + ast.parse(content) + except SyntaxError as e: + raise SyntaxError('There are syntax errors in config ' + f'file {filename}: {e}') + + @staticmethod + def _substitute_predefined_vars(filename: str, temp_config_name: str): + """Substitute predefined variables in config with actual values. + + Sometimes we want some variables in the config to be related to the + current path or file name, etc. + + Here is an example of a typical usage scenario. When training a model, + we define a working directory in the config that save the models and + logs. For different configs, we expect to define different working + directories. A common way for users is to use the config file name + directly as part of the working directory name, e.g. for the config + ``config_setting1.py``, the working directory is + ``. /work_dir/config_setting1``. + + This can be easily achieved using predefined variables, which can be + written in the config `config_setting1.py` as follows + + .. code-block:: python + + work_dir = '. /work_dir/{{ fileBasenameNoExtension }}' + + + Here `{{ fileBasenameNoExtension }}` indicates the file name of the + config (without the extension), and when the config class reads the + config file, it will automatically parse this double-bracketed string + to the corresponding actual value. + + .. code-block:: python + + cfg = Config.fromfile('. /config_setting1.py') + cfg.work_dir # ". /work_dir/config_setting1" + + + For details, Please refer to docs/zh_cn/advanced_tutorials/config.md . + + Args: + filename (str): Filename of config. + temp_config_name (str): Temporary filename to save substituted + config. + """ + file_dirname = osp.dirname(filename) + file_basename = osp.basename(filename) + file_basename_no_extension = osp.splitext(file_basename)[0] + file_extname = osp.splitext(filename)[1] + support_templates = dict( + fileDirname=file_dirname, + fileBasename=file_basename, + fileBasenameNoExtension=file_basename_no_extension, + fileExtname=file_extname) + with open(filename, encoding='utf-8') as f: + config_file = f.read() + for key, value in support_templates.items(): + regexp = r'\{\{\s*' + str(key) + r'\s*\}\}' + value = value.replace('\\', '/') + config_file = re.sub(regexp, value, config_file) + with open(temp_config_name, 'w', encoding='utf-8') as tmp_config_file: + tmp_config_file.write(config_file) + + @staticmethod + def _substitute_env_variables(filename: str, temp_config_name: str): + """Substitute environment variables in config with actual values. + + Sometimes, we want to change some items in the config with environment + variables. For examples, we expect to change dataset root by setting + ``DATASET_ROOT=/dataset/root/path`` in the command line. This can be + easily achieved by writing lines in the config as follows + + .. code-block:: python + + data_root = '{{$DATASET_ROOT:/default/dataset}}/images' + + + Here, ``{{$DATASET_ROOT:/default/dataset}}`` indicates using the + environment variable ``DATASET_ROOT`` to replace the part between + ``{{}}``. If the ``DATASET_ROOT`` is not set, the default value + ``/default/dataset`` will be used. + + Environment variables not only can replace items in the string, they + can also substitute other types of data in config. In this situation, + we can write the config as below + + .. code-block:: python + + model = dict( + bbox_head = dict(num_classes={{'$NUM_CLASSES:80'}})) + + + For details, Please refer to docs/zh_cn/tutorials/config.md . + + Args: + filename (str): Filename of config. + temp_config_name (str): Temporary filename to save substituted + config. + """ + with open(filename, encoding='utf-8') as f: + config_file = f.read() + regexp = r'\{\{[\'\"]?\s*\$(\w+)\s*\:\s*(\S*?)\s*[\'\"]?\}\}' + keys = re.findall(regexp, config_file) + env_variables = dict() + for var_name, value in keys: + regexp = r'\{\{[\'\"]?\s*\$' + var_name + r'\s*\:\s*' \ + + value + r'\s*[\'\"]?\}\}' + if var_name in os.environ: + value = os.environ[var_name] + env_variables[var_name] = value + if not value: + raise KeyError(f'`{var_name}` cannot be found in `os.environ`.' + f' Please set `{var_name}` in environment or ' + 'give a default value.') + config_file = re.sub(regexp, value, config_file) + + with open(temp_config_name, 'w', encoding='utf-8') as tmp_config_file: + tmp_config_file.write(config_file) + return env_variables + + @staticmethod + def _pre_substitute_base_vars(filename: str, + temp_config_name: str) -> dict: + """Preceding step for substituting variables in base config with actual + value. + + Args: + filename (str): Filename of config. + temp_config_name (str): Temporary filename to save substituted + config. + + Returns: + dict: A dictionary contains variables in base config. + """ + with open(filename, encoding='utf-8') as f: + config_file = f.read() + base_var_dict = {} + regexp = r'\{\{\s*' + BASE_KEY + r'\.([\w\.]+)\s*\}\}' + base_vars = set(re.findall(regexp, config_file)) + for base_var in base_vars: + randstr = f'_{base_var}_{uuid.uuid4().hex.lower()[:6]}' + base_var_dict[randstr] = base_var + regexp = r'\{\{\s*' + BASE_KEY + r'\.' + base_var + r'\s*\}\}' + config_file = re.sub(regexp, f'"{randstr}"', config_file) + with open(temp_config_name, 'w', encoding='utf-8') as tmp_config_file: + tmp_config_file.write(config_file) + return base_var_dict + + @staticmethod + def _substitute_base_vars(cfg: Any, base_var_dict: dict, + base_cfg: dict) -> Any: + """Substitute base variables from strings to their actual values. + + Args: + Any : Config dictionary. + base_var_dict (dict): A dictionary contains variables in base + config. + base_cfg (dict): Base config dictionary. + + Returns: + Any : A dictionary with origin base variables + substituted with actual values. + """ + cfg = copy.deepcopy(cfg) + + if isinstance(cfg, dict): + for k, v in cfg.items(): + if isinstance(v, str) and v in base_var_dict: + new_v = base_cfg + for new_k in base_var_dict[v].split('.'): + new_v = new_v[new_k] + cfg[k] = new_v + elif isinstance(v, (list, tuple, dict)): + cfg[k] = Config._substitute_base_vars( + v, base_var_dict, base_cfg) + elif isinstance(cfg, tuple): + cfg = tuple( + Config._substitute_base_vars(c, base_var_dict, base_cfg) + for c in cfg) + elif isinstance(cfg, list): + cfg = [ + Config._substitute_base_vars(c, base_var_dict, base_cfg) + for c in cfg + ] + elif isinstance(cfg, str) and cfg in base_var_dict: + new_v = base_cfg + for new_k in base_var_dict[cfg].split('.'): + new_v = new_v[new_k] + cfg = new_v + + return cfg + + @staticmethod + def _file2dict( + filename: str, + use_predefined_variables: bool = True, + use_environment_variables: bool = True, + lazy_import: Optional[bool] = None) -> Tuple[dict, str, dict]: + """Transform file to variables dictionary. + + Args: + filename (str): Name of config file. + use_predefined_variables (bool, optional): Whether to use + predefined variables. Defaults to True. + use_environment_variables (bool, optional): Whether to use + environment variables. Defaults to True. + lazy_import (bool): Whether to load config in `lazy_import` mode. + If it is `None`, it will be deduced by the content of the + config file. Defaults to None. + + Returns: + Tuple[dict, str]: Variables dictionary and text of Config. + """ + if lazy_import is None and Config._is_lazy_import(filename): + raise RuntimeError( + 'The configuration file type in the inheritance chain ' + 'must match the current configuration file type, either ' + '"lazy_import" or non-"lazy_import". You got this error ' + 'since you use the syntax like `with read_base(): ...` ' + f'or import non-builtin module in {filename}.' # noqa: E501 + ) + + filename = osp.abspath(osp.expanduser(filename)) + check_file_exist(filename) + fileExtname = osp.splitext(filename)[1] + if fileExtname not in ['.py', '.json', '.yaml', '.yml']: + raise OSError('Only py/yml/yaml/json type are supported now!') + try: + with tempfile.TemporaryDirectory() as temp_config_dir: + temp_config_file = tempfile.NamedTemporaryFile( + dir=temp_config_dir, suffix=fileExtname, delete=False) + if platform.system() == 'Windows': + temp_config_file.close() + + # Substitute predefined variables + if use_predefined_variables: + Config._substitute_predefined_vars(filename, + temp_config_file.name) + else: + shutil.copyfile(filename, temp_config_file.name) + # Substitute environment variables + env_variables = dict() + if use_environment_variables: + env_variables = Config._substitute_env_variables( + temp_config_file.name, temp_config_file.name) + # Substitute base variables from placeholders to strings + base_var_dict = Config._pre_substitute_base_vars( + temp_config_file.name, temp_config_file.name) + + # Handle base files + base_cfg_dict = ConfigDict() + cfg_text_list = list() + for base_cfg_path in Config._get_base_files( + temp_config_file.name): + base_cfg_path, scope = Config._get_cfg_path( + base_cfg_path, filename) + _cfg_dict, _cfg_text, _env_variables = Config._file2dict( + filename=base_cfg_path, + use_predefined_variables=use_predefined_variables, + use_environment_variables=use_environment_variables, + lazy_import=lazy_import, + ) + cfg_text_list.append(_cfg_text) + env_variables.update(_env_variables) + duplicate_keys = base_cfg_dict.keys() & _cfg_dict.keys() + if len(duplicate_keys) > 0: + raise KeyError( + 'Duplicate key is not allowed among bases. ' + f'Duplicate keys: {duplicate_keys}') + + # _dict_to_config_dict will do the following things: + # 1. Recursively converts ``dict`` to :obj:`ConfigDict`. + # 2. Set `_scope_` for the outer dict variable for the base + # config. + # 3. Set `scope` attribute for each base variable. + # Different from `_scope_`, `scope` is not a key of base + # dict, `scope` attribute will be parsed to key `_scope_` + # by function `_parse_scope` only if the base variable is + # accessed by the current config. + _cfg_dict = Config._dict_to_config_dict(_cfg_dict, scope) + base_cfg_dict.update(_cfg_dict) + + if filename.endswith('.py'): + with open(temp_config_file.name, encoding='utf-8') as f: + parsed_codes = ast.parse(f.read()) + parsed_codes = RemoveAssignFromAST(BASE_KEY).visit( + parsed_codes) + codeobj = compile(parsed_codes, filename, mode='exec') + # Support load global variable in nested function of the + # config. + global_locals_var = {BASE_KEY: base_cfg_dict} + ori_keys = set(global_locals_var.keys()) + eval(codeobj, global_locals_var, global_locals_var) + cfg_dict = { + key: value + for key, value in global_locals_var.items() + if (key not in ori_keys and not key.startswith('__')) + } + elif filename.endswith(('.yml', '.yaml', '.json')): + cfg = OmegaConf.load(temp_config_file.name) + cfg_dict = OmegaConf.to_container(cfg, resolve=True) + # close temp file + for key, value in list(cfg_dict.items()): + if isinstance(value, + (types.FunctionType, types.ModuleType)): + cfg_dict.pop(key) + temp_config_file.close() + + # If the current config accesses a base variable of base + # configs, The ``scope`` attribute of corresponding variable + # will be converted to the `_scope_`. + Config._parse_scope(cfg_dict) + except Exception as e: + if osp.exists(temp_config_dir): + shutil.rmtree(temp_config_dir) + raise e + + # check deprecation information + if DEPRECATION_KEY in cfg_dict: + deprecation_info = cfg_dict.pop(DEPRECATION_KEY) + warning_msg = f'The config file {filename} will be deprecated ' \ + 'in the future.' + if 'expected' in deprecation_info: + warning_msg += f' Please use {deprecation_info["expected"]} ' \ + 'instead.' + if 'reference' in deprecation_info: + warning_msg += ' More information can be found at ' \ + f'{deprecation_info["reference"]}' + warnings.warn(warning_msg, DeprecationWarning) + + cfg_text = filename + '\n' + with open(filename, encoding='utf-8') as f: + # Setting encoding explicitly to resolve coding issue on windows + cfg_text += f.read() + + # Substitute base variables from strings to their actual values + cfg_dict = Config._substitute_base_vars(cfg_dict, base_var_dict, + base_cfg_dict) + cfg_dict.pop(BASE_KEY, None) + + cfg_dict = Config._merge_a_into_b(cfg_dict, base_cfg_dict) + cfg_dict = { + k: v + for k, v in cfg_dict.items() if not k.startswith('__') + } + + # merge cfg_text + cfg_text_list.append(cfg_text) + cfg_text = '\n'.join(cfg_text_list) + + return cfg_dict, cfg_text, env_variables + + @staticmethod + def _parse_lazy_import(filename: str) -> Tuple[ConfigDict, set]: + """Transform file to variables dictionary. + + Args: + filename (str): Name of config file. + + Returns: + Tuple[dict, dict]: ``cfg_dict`` and ``imported_names``. + + - cfg_dict (dict): Variables dictionary of parsed config. + - imported_names (set): Used to mark the names of + imported object. + """ + # In lazy import mode, users can use the Python syntax `import` to + # implement inheritance between configuration files, which is easier + # for users to understand the hierarchical relationships between + # different configuration files. + + # Besides, users can also using `import` syntax to import corresponding + # module which will be filled in the `type` field. It means users + # can directly navigate to the source of the module in the + # configuration file by clicking the `type` field. + + # To avoid really importing the third party package like `torch` + # during import `type` object, we use `_parse_lazy_import` to parse the + # configuration file, which will not actually trigger the import + # process, but simply parse the imported `type`s as LazyObject objects. + + # The overall pipeline of _parse_lazy_import is: + # 1. Parse the base module from the config file. + # || + # \/ + # base_module = ['mmdet.configs.default_runtime'] + # || + # \/ + # 2. recursively parse the base module and gather imported objects to + # a dict. + # || + # \/ + # The base_dict will be: + # { + # 'mmdet.configs.default_runtime': {...} + # 'mmdet.configs.retinanet_r50_fpn_1x_coco': {...} + # ... + # }, each item in base_dict is a dict of `LazyObject` + # 3. parse the current config file filling the imported variable + # with the base_dict. + # + # 4. During the parsing process, all imported variable will be + # recorded in the `imported_names` set. These variables can be + # accessed, but will not be dumped by default. + + with open(filename, encoding='utf-8') as f: + global_dict = {'LazyObject': LazyObject, '__file__': filename} + base_dict = {} + + parsed_codes = ast.parse(f.read()) + # get the names of base modules, and remove the + # `with read_base():'` statement + base_modules = Config._get_base_modules(parsed_codes.body) + base_imported_names = set() + for base_module in base_modules: + # If base_module means a relative import, assuming the level is + # 2, which means the module is imported like + # "from ..a.b import c". we must ensure that c is an + # object `defined` in module b, and module b should not be a + # package including `__init__` file but a single python file. + level = len(re.match(r'\.*', base_module).group()) + if level > 0: + # Relative import + base_dir = osp.dirname(filename) + module_path = osp.join( + base_dir, *(['..'] * (level - 1)), + f'{base_module[level:].replace(".", "/")}.py') + else: + # Absolute import + module_list = base_module.split('.') + if len(module_list) == 1: + raise SyntaxError( + 'The imported configuration file should not be ' + f'an independent package {module_list[0]}. Here ' + 'is an example: ' + '`with read_base(): from mmdet.configs.retinanet_r50_fpn_1x_coco import *`' # noqa: E501 + ) + else: + package = module_list[0] + root_path = get_installed_path(package) + module_path = f'{osp.join(root_path, *module_list[1:])}.py' # noqa: E501 + if not osp.isfile(module_path): + raise SyntaxError( + f'{module_path} not found! It means that incorrect ' + 'module is defined in ' + f'`with read_base(): = from {base_module} import ...`, please ' # noqa: E501 + 'make sure the base config module is valid ' + 'and is consistent with the prior import ' + 'logic') + _base_cfg_dict, _base_imported_names = Config._parse_lazy_import( # noqa: E501 + module_path) + base_imported_names |= _base_imported_names + # The base_dict will be: + # { + # 'mmdet.configs.default_runtime': {...} + # 'mmdet.configs.retinanet_r50_fpn_1x_coco': {...} + # ... + # } + base_dict[base_module] = _base_cfg_dict + + # `base_dict` contains all the imported modules from `base_cfg`. + # In order to collect the specific imported module from `base_cfg` + # before parse the current file, we using AST Transform to + # transverse the imported module from base_cfg and merge then into + # the global dict. After the ast transformation, most of import + # syntax will be removed (except for the builtin import) and + # replaced with the `LazyObject` + transform = ImportTransformer( + global_dict=global_dict, + base_dict=base_dict, + filename=filename) + modified_code = transform.visit(parsed_codes) + modified_code, abs_imported = _gather_abs_import_lazyobj( + modified_code, filename=filename) + imported_names = transform.imported_obj | abs_imported + imported_names |= base_imported_names + modified_code = ast.fix_missing_locations(modified_code) + exec( + compile(modified_code, filename, mode='exec'), global_dict, + global_dict) + + ret: dict = {} + for key, value in global_dict.items(): + if key.startswith('__') or key in ['LazyObject']: + continue + ret[key] = value + # convert dict to ConfigDict + cfg_dict = Config._dict_to_config_dict_lazy(ret) + + return cfg_dict, imported_names + + @staticmethod + def _dict_to_config_dict_lazy(cfg: dict): + """Recursively converts ``dict`` to :obj:`ConfigDict`. The only + difference between ``_dict_to_config_dict_lazy`` and + ``_dict_to_config_dict_lazy`` is that the former one does not consider + the scope, and will not trigger the building of ``LazyObject``. + + Args: + cfg (dict): Config dict. + + Returns: + ConfigDict: Converted dict. + """ + # Only the outer dict with key `type` should have the key `_scope_`. + if isinstance(cfg, dict): + cfg_dict = ConfigDict() + for key, value in cfg.items(): + cfg_dict[key] = Config._dict_to_config_dict_lazy(value) + return cfg_dict + if isinstance(cfg, (tuple, list)): + return type(cfg)( + Config._dict_to_config_dict_lazy(_cfg) for _cfg in cfg) + return cfg + + @staticmethod + def _dict_to_config_dict(cfg: dict, + scope: Optional[str] = None, + has_scope=True): + """Recursively converts ``dict`` to :obj:`ConfigDict`. + + Args: + cfg (dict): Config dict. + scope (str, optional): Scope of instance. + has_scope (bool): Whether to add `_scope_` key to config dict. + + Returns: + ConfigDict: Converted dict. + """ + # Only the outer dict with key `type` should have the key `_scope_`. + if isinstance(cfg, dict): + if has_scope and 'type' in cfg: + has_scope = False + if scope is not None and cfg.get('_scope_', None) is None: + cfg._scope_ = scope # type: ignore + cfg = ConfigDict(cfg) + dict.__setattr__(cfg, 'scope', scope) + for key, value in cfg.items(): + cfg[key] = Config._dict_to_config_dict( + value, scope=scope, has_scope=has_scope) + elif isinstance(cfg, tuple): + cfg = tuple( + Config._dict_to_config_dict(_cfg, scope, has_scope=has_scope) + for _cfg in cfg) + elif isinstance(cfg, list): + cfg = [ + Config._dict_to_config_dict(_cfg, scope, has_scope=has_scope) + for _cfg in cfg + ] + return cfg + + @staticmethod + def _parse_scope(cfg: dict) -> None: + """Adds ``_scope_`` to :obj:`ConfigDict` instance, which means a base + variable. + + If the config dict already has the scope, scope will not be + overwritten. + + Args: + cfg (dict): Config needs to be parsed with scope. + """ + if isinstance(cfg, ConfigDict): + cfg._scope_ = cfg.scope + elif isinstance(cfg, (tuple, list)): + [Config._parse_scope(value) for value in cfg] + else: + return + + @staticmethod + def _get_base_files(filename: str) -> list: + """Get the base config file. + + Args: + filename (str): The config file. + + Raises: + TypeError: Name of config file. + + Returns: + list: A list of base config. + """ + file_format = osp.splitext(filename)[1] + if file_format == '.py': + Config._validate_py_syntax(filename) + with open(filename, encoding='utf-8') as f: + parsed_codes = ast.parse(f.read()).body + + def is_base_line(c): + return (isinstance(c, ast.Assign) + and isinstance(c.targets[0], ast.Name) + and c.targets[0].id == BASE_KEY) + + base_code = next((c for c in parsed_codes if is_base_line(c)), + None) + if base_code is not None: + base_code = ast.Expression( # type: ignore + body=base_code.value) # type: ignore + base_files = eval(compile(base_code, '', + mode='eval')) # type: ignore + else: + base_files = [] + elif file_format in ('.yml', '.yaml', '.json'): + cfg = OmegaConf.load(filename) + cfg_dict = OmegaConf.to_container(cfg, resolve=True) + base_files = cfg_dict.get(BASE_KEY, []) + else: + raise SyntaxError( + 'The config type should be py, json, yaml or ' + f'yml, but got {file_format}') + base_files = base_files if isinstance(base_files, + list) else [base_files] + return base_files + + @staticmethod + def _get_cfg_path(cfg_path: str, + filename: str) -> Tuple[str, Optional[str]]: + """Get the config path from the current or external package. + + Args: + cfg_path (str): Relative path of config. + filename (str): The config file being parsed. + + Returns: + Tuple[str, str or None]: Path and scope of config. If the config + is not an external config, the scope will be `None`. + """ + if '::' in cfg_path: + # `cfg_path` startswith '::' means an external config path. + # Get package name and relative config path. + scope = cfg_path.partition('::')[0] + package, cfg_path = _get_package_and_cfg_path(cfg_path) + + if not is_installed(package): + raise ModuleNotFoundError( + f'{package} is not installed, please install {package} ' + f'manually') + + # Get installed package path. + package_path = get_installed_path(package) + try: + # Get config path from meta file. + cfg_path = _get_external_cfg_path(package_path, cfg_path) + except ValueError: + # Since base config does not have a metafile, it should be + # concatenated with package path and relative config path. + cfg_path = _get_external_cfg_base_path(package_path, cfg_path) + except FileNotFoundError as e: + raise e + return cfg_path, scope + else: + # Get local config path. + cfg_dir = osp.dirname(filename) + cfg_path = osp.join(cfg_dir, cfg_path) + return cfg_path, None + + @staticmethod + def _merge_a_into_b(a: dict, + b: dict, + allow_list_keys: bool = False) -> dict: + """Merge dict ``a`` into dict ``b`` (non-inplace). + + Values in ``a`` will overwrite ``b``. ``b`` is copied first to avoid + in-place modifications. + + Args: + a (dict): The source dict to be merged into ``b``. + b (dict): The origin dict to be fetch keys from ``a``. + allow_list_keys (bool): If True, int string keys (e.g. '0', '1') + are allowed in source ``a`` and will replace the element of the + corresponding index in b if b is a list. Defaults to False. + + Returns: + dict: The modified dict of ``b`` using ``a``. + + Examples: + # Normally merge a into b. + >>> Config._merge_a_into_b( + ... dict(obj=dict(a=2)), dict(obj=dict(a=1))) + {'obj': {'a': 2}} + + # Delete b first and merge a into b. + >>> Config._merge_a_into_b( + ... dict(obj=dict(_delete_=True, a=2)), dict(obj=dict(a=1))) + {'obj': {'a': 2}} + + # b is a list + >>> Config._merge_a_into_b( + ... {'0': dict(a=2)}, [dict(a=1), dict(b=2)], True) + [{'a': 2}, {'b': 2}] + """ + b = b.copy() + for k, v in a.items(): + if allow_list_keys and k.isdigit() and isinstance(b, list): + k = int(k) + if len(b) <= k: + raise KeyError(f'Index {k} exceeds the length of list {b}') + b[k] = Config._merge_a_into_b(v, b[k], allow_list_keys) + elif isinstance(v, dict): + if k in b and not v.pop(DELETE_KEY, False): + allowed_types: Union[Tuple, type] = ( + dict, list) if allow_list_keys else dict + if not isinstance(b[k], allowed_types): + raise TypeError( + f'{k}={v} in child config cannot inherit from ' + f'base because {k} is a dict in the child config ' + f'but is of type {type(b[k])} in base config. ' + f'You may set `{DELETE_KEY}=True` to ignore the ' + f'base config.') + b[k] = Config._merge_a_into_b(v, b[k], allow_list_keys) + else: + b[k] = ConfigDict(v) + else: + b[k] = v + return b + + @property + def filename(self) -> str: + """Get file name of config.""" + return self._filename + + @property + def text(self) -> str: + """Get config text.""" + return self._text + + @property + def env_variables(self) -> dict: + """Get used environment variables.""" + return self._env_variables + + @property + def pretty_text(self) -> str: + """Get formatted python config text.""" + + indent = 4 + + def _indent(s_, num_spaces): + s = s_.split('\n') + if len(s) == 1: + return s_ + first = s.pop(0) + s = [(num_spaces * ' ') + line for line in s] + s = '\n'.join(s) + s = first + '\n' + s + return s + + def _format_basic_types(k, v, use_mapping=False): + if isinstance(v, str): + v_str = repr(v) + else: + v_str = str(v) + + if use_mapping: + k_str = f"'{k}'" if isinstance(k, str) else str(k) + attr_str = f'{k_str}: {v_str}' + else: + attr_str = f'{str(k)}={v_str}' + attr_str = _indent(attr_str, indent) + + return attr_str + + def _format_list_tuple(k, v, use_mapping=False): + if isinstance(v, list): + left = '[' + right = ']' + else: + left = '(' + right = ')' + + v_str = f'{left}\n' + # check if all items in the list are dict + for item in v: + if isinstance(item, dict): + v_str += f'dict({_indent(_format_dict(item), indent)}),\n' + elif isinstance(item, tuple): + v_str += f'{_indent(_format_list_tuple(None, item), indent)},\n' # noqa: 501 + elif isinstance(item, list): + v_str += f'{_indent(_format_list_tuple(None, item), indent)},\n' # noqa: 501 + elif isinstance(item, str): + v_str += f'{_indent(repr(item), indent)},\n' + else: + v_str += str(item) + ',\n' + if k is None: + return _indent(v_str, indent) + right + if use_mapping: + k_str = f"'{k}'" if isinstance(k, str) else str(k) + attr_str = f'{k_str}: {v_str}' + else: + attr_str = f'{str(k)}={v_str}' + attr_str = _indent(attr_str, indent) + right + return attr_str + + def _contain_invalid_identifier(dict_str): + contain_invalid_identifier = False + for key_name in dict_str: + contain_invalid_identifier |= \ + (not str(key_name).isidentifier()) + return contain_invalid_identifier + + def _format_dict(input_dict, outest_level=False): + r = '' + s = [] + + use_mapping = _contain_invalid_identifier(input_dict) + if use_mapping: + r += '{' + for idx, (k, v) in enumerate( + sorted(input_dict.items(), key=lambda x: str(x[0]))): + is_last = idx >= len(input_dict) - 1 + end = '' if outest_level or is_last else ',' + if isinstance(v, dict): + v_str = '\n' + _format_dict(v) + if use_mapping: + k_str = f"'{k}'" if isinstance(k, str) else str(k) + attr_str = f'{k_str}: dict({v_str}' + else: + attr_str = f'{str(k)}=dict({v_str}' + attr_str = _indent(attr_str, indent) + ')' + end + elif isinstance(v, (list, tuple)): + attr_str = _format_list_tuple(k, v, use_mapping) + end + else: + attr_str = _format_basic_types(k, v, use_mapping) + end + + s.append(attr_str) + r += '\n'.join(s) + if use_mapping: + r += '}' + return r + + cfg_dict = self.to_dict() + text = _format_dict(cfg_dict, outest_level=True) + if self._format_python_code: + # copied from setup.cfg + yapf_style = dict( + based_on_style='pep8', + blank_line_before_nested_class_or_def=True, + split_before_expression_after_opening_paren=True) + try: + from ...utils import digit_version + if digit_version(yapf.__version__) >= digit_version('0.40.2'): + text, _ = FormatCode(text, style_config=yapf_style) + else: + text, _ = FormatCode( + text, style_config=yapf_style, verify=True) + except: # noqa: E722 + raise SyntaxError('Failed to format the config file, please ' + f'check the syntax of: \n{text}') + return text + + def __repr__(self): + return f'Config (path: {self.filename}): {self._cfg_dict.__repr__()}' + + def __len__(self): + return len(self._cfg_dict) + + def __getattr__(self, name: str) -> Any: + return getattr(self._cfg_dict, name) + + def __getitem__(self, name): + return self._cfg_dict.__getitem__(name) + + def __setattr__(self, name, value): + if isinstance(value, dict): + value = ConfigDict(value) + self._cfg_dict.__setattr__(name, value) + + def __setitem__(self, name, value): + if isinstance(value, dict): + value = ConfigDict(value) + self._cfg_dict.__setitem__(name, value) + + def __iter__(self): + return iter(self._cfg_dict) + + def __getstate__( + self + ) -> Tuple[dict, Optional[str], Optional[str], dict, bool, set]: + state = (self._cfg_dict, self._filename, self._text, + self._env_variables, self._format_python_code, + self._imported_names) + return state + + def __deepcopy__(self, memo): + cls = self.__class__ + other = cls.__new__(cls) + memo[id(self)] = other + + for key, value in self.__dict__.items(): + super(Config, other).__setattr__(key, copy.deepcopy(value, memo)) + + return other + + def __copy__(self): + cls = self.__class__ + other = cls.__new__(cls) + other.__dict__.update(self.__dict__) + super(Config, other).__setattr__('_cfg_dict', self._cfg_dict.copy()) + + return other + + copy = __copy__ + + def __setstate__(self, state: Tuple[dict, Optional[str], Optional[str], + dict, bool, set]): + super().__setattr__('_cfg_dict', state[0]) + super().__setattr__('_filename', state[1]) + super().__setattr__('_text', state[2]) + super().__setattr__('_env_variables', state[3]) + super().__setattr__('_format_python_code', state[4]) + super().__setattr__('_imported_names', state[5]) + + def dump(self, file: Optional[Union[str, Path]] = None): + """Dump config to file or return config text. + + Args: + file (str or Path, optional): If not specified, then the object + is dumped to a str, otherwise to a file specified by the filename. + Defaults to None. + + Returns: + str or None: Config text. + """ + file = str(file) if isinstance(file, Path) else file + cfg_dict = self.to_dict() + if file is None: + if self.filename is None or self.filename.endswith('.py'): + return self.pretty_text + else: + file_format = self.filename.split('.')[-1] + return dump(cfg_dict, file_format=file_format) + elif file.endswith('.py'): + with open(file, 'w', encoding='utf-8') as f: + f.write(self.pretty_text) + else: + file_format = file.split('.')[-1] + return dump(cfg_dict, file=file, file_format=file_format) + + @staticmethod + def _is_lazy_import(filename: str) -> bool: + if not filename.endswith('.py'): + return False + with open(filename, encoding='utf-8') as f: + codes_str = f.read() + parsed_codes = ast.parse(codes_str) + for node in ast.walk(parsed_codes): + if (isinstance(node, ast.Assign) + and isinstance(node.targets[0], ast.Name) + and node.targets[0].id == BASE_KEY): + return False + + if isinstance(node, ast.With): + expr = node.items[0].context_expr + if (not isinstance(expr, ast.Call) + or not expr.func.id == 'read_base'): # type: ignore + raise SyntaxError( + 'Only `read_base` context manager can be used in the ' + 'config') + return True + if isinstance(node, ast.ImportFrom): + # relative import -> lazy_import + if node.level != 0: + return True + # Skip checking when using `mmengine.config` in cfg file + if (node.module == 'mmengine' and len(node.names) == 1 + and node.names[0].name == 'Config'): + continue + if not isinstance(node.module, str): + continue + # non-builtin module -> lazy_import + if not _is_builtin_module(node.module): + return True + if isinstance(node, ast.Import): + for alias_node in node.names: + if not _is_builtin_module(alias_node.name): + return True + return False + + def _to_lazy_dict(self, keep_imported: bool = False) -> dict: + """Convert config object to dictionary with lazy object, and filter the + imported object.""" + res = self._cfg_dict._to_lazy_dict() + if hasattr(self, '_imported_names') and not keep_imported: + res = { + key: value + for key, value in res.items() + if key not in self._imported_names + } + return res + + def to_dict(self, keep_imported: bool = False): + """Convert all data in the config to a builtin ``dict``. + + Args: + keep_imported (bool): Whether to keep the imported field. + Defaults to False + + If you import third-party objects in the config file, all imported + objects will be converted to a string like ``torch.optim.SGD`` + """ + cfg_dict = self._cfg_dict.to_dict() + if hasattr(self, '_imported_names') and not keep_imported: + cfg_dict = { + key: value + for key, value in cfg_dict.items() + if key not in self._imported_names + } + return cfg_dict \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/lazy.py b/model_without_OpenMMLab/segformer_plusplus/configs/config/lazy.py new file mode 100644 index 0000000000000000000000000000000000000000..098ed2357d1295b33ac6958cde18ca541c562d59 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/config/lazy.py @@ -0,0 +1,267 @@ +import importlib +from typing import Any, Optional, Union, Type +from collections import abc + + +class LazyObject: + """LazyObject is used to lazily initialize the imported module during + parsing the configuration file. + + During parsing process, the syntax like: + + Examples: + >>> import torch.nn as nn + >>> from mmdet.models import RetinaNet + >>> import mmcls.models + >>> import mmcls.datasets + >>> import mmcls + + Will be parsed as: + + Examples: + >>> # import torch.nn as nn + >>> nn = lazyObject('torch.nn') + >>> # from mmdet.models import RetinaNet + >>> RetinaNet = lazyObject('mmdet.models', 'RetinaNet') + >>> # import mmcls.models; import mmcls.datasets; import mmcls + >>> mmcls = lazyObject(['mmcls', 'mmcls.datasets', 'mmcls.models']) + + ``LazyObject`` records all module information and will be further + referenced by the configuration file. + + Args: + module (str or list or tuple): The module name to be imported. + imported (str, optional): The imported module name. Defaults to None. + location (str, optional): The filename and line number of the imported + module statement happened. + """ + + def __init__(self, + module: Union[str, list, tuple], + imported: Optional[str] = None, + location: Optional[str] = None): + if not isinstance(module, str) and not is_seq_of(module, str): + raise TypeError('module should be `str`, `list`, or `tuple`' + f'but got {type(module)}, this might be ' + 'a bug, please report it') + self._module: Union[str, list, tuple] = module + + if not isinstance(imported, str) and imported is not None: + raise TypeError('imported should be `str` or None, but got ' + f'{type(imported)}, this might be ' + 'a bug , please report it') + self._imported = imported + self.location = location + + def build(self) -> Any: + """Return imported object. + + Returns: + Any: Imported object + """ + if isinstance(self._module, str): + try: + module = importlib.import_module(self._module) + except Exception as e: + raise type(e)(f'Failed to import {self._module} ' + f'in {self.location} for {e}') + + if self._imported is not None: + if hasattr(module, self._imported): + module = getattr(module, self._imported) + else: + raise ImportError( + f'Failed to import {self._imported} ' + f'from {self._module} in {self.location}') + + return module + else: + try: + for module in self._module: + importlib.import_module(module) # type: ignore + module_name = self._module[0].split('.')[0] + return importlib.import_module(module_name) + except Exception as e: + raise type(e)(f'Failed to import {self.module} ' + f'in {self.location} for {e}') + + @property + def module(self): + if isinstance(self._module, str): + return self._module + return self._module[0].split('.')[0] + + def __call__(self, *args, **kwargs): + raise RuntimeError() + + def __deepcopy__(self, memo): + return LazyObject(self._module, self._imported, self.location) + + def __getattr__(self, name): + # Cannot locate the line number of the getting attribute. + # Therefore only record the filename. + if self.location is not None: + location = self.location.split(', line')[0] + else: + location = self.location + return LazyAttr(name, self, location) + + def __str__(self) -> str: + if self._imported is not None: + return self._imported + return self.module + + __repr__ = __str__ + + # `pickle.dump` will try to get the `__getstate__` and `__setstate__` + # methods of the dumped object. If these two methods are not defined, + # LazyObject will return a `__getstate__` LazyObject` or `__setstate__` + # LazyObject. + def __getstate__(self): + return self.__dict__ + + def __setstate__(self, state): + self.__dict__ = state + + +class LazyAttr: + """The attribute of the LazyObject. + + When parsing the configuration file, the imported syntax will be + parsed as the assignment ``LazyObject``. During the subsequent parsing + process, users may reference the attributes of the LazyObject. + To ensure that these attributes also contain information needed to + reconstruct the attribute itself, LazyAttr was introduced. + + Examples: + >>> models = LazyObject(['mmdet.models']) + >>> model = dict(type=models.RetinaNet) + >>> print(type(model['type'])) # + >>> print(model['type'].build()) # + """ # noqa: E501 + + def __init__(self, + name: str, + source: Union['LazyObject', 'LazyAttr'], + location=None): + self.name = name + self.source: Union[LazyAttr, LazyObject] = source + + if isinstance(self.source, LazyObject): + if isinstance(self.source._module, str): + if self.source._imported is None: + # source code: + # from xxx.yyy import zzz + # equivalent code: + # zzz = LazyObject('xxx.yyy', 'zzz') + # The source code of get attribute: + # eee = zzz.eee + # Then, `eee._module` should be "xxx.yyy.zzz" + self._module = self.source._module + else: + # source code: + # import xxx.yyy as zzz + # equivalent code: + # zzz = LazyObject('xxx.yyy') + # The source code of get attribute: + # eee = zzz.eee + # Then, `eee._module` should be "xxx.yyy" + self._module = f'{self.source._module}.{self.source}' + else: + # The source code of LazyObject should be + # 1. import xxx.yyy + # 2. import xxx.zzz + # Equivalent to + # xxx = LazyObject(['xxx.yyy', 'xxx.zzz']) + + # The source code of LazyAttr should be + # eee = xxx.eee + # Then, eee._module = xxx + self._module = str(self.source) + elif isinstance(self.source, LazyAttr): + # 1. import xxx + # 2. zzz = xxx.yyy.zzz + + # Equivalent to: + # xxx = LazyObject('xxx') + # zzz = xxx.yyy.zzz + # zzz._module = xxx.yyy._module + zzz.name + self._module = f'{self.source._module}.{self.source.name}' + self.location = location + + @property + def module(self): + return self._module + + def __call__(self, *args, **kwargs: Any) -> Any: + raise RuntimeError() + + def __getattr__(self, name: str) -> 'LazyAttr': + return LazyAttr(name, self) + + def __deepcopy__(self, memo): + return LazyAttr(self.name, self.source) + + def build(self) -> Any: + """Return the attribute of the imported object. + + Returns: + Any: attribute of the imported object. + """ + obj = self.source.build() + try: + return getattr(obj, self.name) + except AttributeError: + raise ImportError(f'Failed to import {self.module}.{self.name} in ' + f'{self.location}') + except ImportError as e: + raise e + + def __str__(self) -> str: + return self.name + + __repr__ = __str__ + + # `pickle.dump` will try to get the `__getstate__` and `__setstate__` + # methods of the dumped object. If these two methods are not defined, + # LazyAttr will return a `__getstate__` LazyAttr` or `__setstate__` + # LazyAttr. + def __getstate__(self): + return self.__dict__ + + def __setstate__(self, state): + self.__dict__ = state + + +def is_seq_of(seq: Any, + expected_type: Union[Type, tuple], + seq_type: Optional[Type] = None) -> bool: + """Check whether it is a sequence of some type. + + Args: + seq (Sequence): The sequence to be checked. + expected_type (type or tuple): Expected type of sequence items. + seq_type (type, optional): Expected sequence type. Defaults to None. + + Returns: + bool: Return True if ``seq`` is valid else False. + + Examples: + >>> from mmengine.utils import is_seq_of + >>> seq = ['a', 'b', 'c'] + >>> is_seq_of(seq, str) + True + >>> is_seq_of(seq, int) + False + """ + if seq_type is None: + exp_seq_type = abc.Sequence + else: + assert isinstance(seq_type, type) + exp_seq_type = seq_type + if not isinstance(seq, exp_seq_type): + return False + for item in seq: + if not isinstance(item, expected_type): + return False + return True \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/config/utils.py b/model_without_OpenMMLab/segformer_plusplus/configs/config/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..a9b32ad4f4c52e69148edd51bd4dabb83b1ed4bb --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/config/utils.py @@ -0,0 +1,687 @@ +import ast +import os.path as osp +import re +import sys +import warnings +from collections import defaultdict +from importlib.util import find_spec +from typing import List, Optional, Tuple, Union +from importlib import import_module as real_import_module +import json +import pickle +from pathlib import Path +import itertools +import importlib.util # Hinzugefügt für find_spec in Python >= 3.7 +import importlib.metadata # Ersatz für pkg_resources.get_distribution und package2module + +# Ersetzt: from pkg_resources.extern import packaging +# Ersetzt: __import__('pkg_resources.extern.packaging.version') +# Ersetzt: __import__('pkg_resources.extern.packaging.specifiers') +# Ersetzt: __import__('pkg_resources.extern.packaging.requirements') +# Ersetzt: __import__('pkg_resources.extern.packaging.markers') +# Importiert nun das externe 'packaging'-Paket direkt +try: + import packaging.version + import packaging.specifiers + import packaging.requirements + import packaging.markers +except ImportError as e: + raise ImportError( + "The 'packaging' package is required but not installed. " + "Install it with 'pip install packaging'." + ) from e + +import yaml +from omegaconf import OmegaConf + + +# Die folgenden Hilfsfunktionen aus pkg_resources wurden unten neu implementiert +# oder durch `packaging` ersetzt: get_distribution, package2module, Requirement, +# parse_requirements, yield_lines, safe_extra, safe_name. + +# --- Hilfsfunktionen für `packaging` (Ersatz für pkg_resources-Logik) --- + +# Implementierung der pkg_resources-Hilfsfunktionen mit 'packaging' +def safe_extra(extra: str) -> str: + """Convert an arbitrary string to a standard 'extra' name""" + # pkg_resources implementation detail using packaging's rules + return re.sub(r'[^A-Za-z0-9.-]+', '_', extra).lower() + + +def safe_name(name: str) -> str: + """Convert an arbitrary string to a standard distribution name""" + # pkg_resources implementation detail using packaging's rules + return re.sub(r'[^A-Za-z0-9.]+', '-', name) + + +class DistributionNotFound(Exception): + """Exception raised when a distribution is not found.""" + pass + + +def get_distribution(dist_name: str) -> importlib.metadata.Distribution: + """Return a current distribution object for a package name or string requirement. + + Args: + dist_name (str): The name of the package or a requirement string. + + Returns: + importlib.metadata.Distribution: The found distribution object. + + Raises: + DistributionNotFound: If the package is not found. + ValueError: If a requirement string is used (not supported by this simplified function). + """ + if ' ' in dist_name or any(op in dist_name for op in ('==', '>=', '<=', '>', '<', '~=', '!=', '==')): + # importlib.metadata.distribution does not handle requirement strings. + # It's better to use the distribution name directly. + # Fallback to direct name extraction. + try: + req = packaging.requirements.Requirement(dist_name) + dist_name = req.name + except packaging.requirements.InvalidRequirement: + raise ValueError( + f"get_distribution only supports package names or simple requirements, " + f"but got: {dist_name}" + ) + + try: + # Use importlib.metadata.distribution for name-based lookup + return importlib.metadata.distribution(dist_name) + except importlib.metadata.PackageNotFoundError: + raise DistributionNotFound(f"The 'Distribution' '{dist_name}' was not found and is required") + + +def package2module(package: str) -> str: + """Infer module name from package using importlib.metadata. + + Args: + package (str): Package to infer module name. + + Returns: + str: The module name. + + Raises: + ValueError: If the top-level module name cannot be inferred. + """ + try: + # Use importlib.metadata.distribution + dist = get_distribution(package) + + # Check for top_level.txt metadata + top_level_txt = dist.read_text('top_level.txt') + if top_level_txt: + # The first non-empty line is usually the top-level module name + module_name = top_level_txt.split('\n')[0].strip() + if module_name: + return module_name + + except (DistributionNotFound, FileNotFoundError): + # Package not found or top_level.txt not available/found + pass # Will raise ValueError below + + raise ValueError( + highlighted_error(f'can not infer the module name of {package}. ' + 'Metadata (top_level.txt) not found or package not installed.') + ) + + +# Neuimplementierung der Requirement-Logik von pkg_resources mit packaging.requirements.Requirement + +class Requirement(packaging.requirements.Requirement): + """Reimplementation of pkg_resources.Requirement using packaging.requirements.Requirement.""" + + def __init__(self, requirement_string): + """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!""" + super().__init__(requirement_string) + self.unsafe_name = self.name + project_name = safe_name(self.name) + self.project_name, self.key = project_name, project_name.lower() + + # specs is an internal list in pkg_resources + self.specs = [ + (spec.operator, spec.version) for spec in self.specifier + ] if self.specifier else [] + + self.extras = tuple(map(safe_extra, self.extras)) + + # hashCmp logic from pkg_resources + self.hashCmp = ( + self.key, + self.url, + str(self.specifier) if self.specifier else '', + frozenset(self.extras), + str(self.marker) if self.marker else None, + ) + self.__hash = hash(self.hashCmp) + + def __eq__(self, other): + return ( + isinstance(other, Requirement) and + self.hashCmp == other.hashCmp + ) + + def __contains__(self, item: packaging.version.Version) -> bool: + """Check if a specific version is contained in the requirement.""" + if isinstance(item, str): + try: + item = packaging.version.Version(item) + except packaging.version.InvalidVersion: + warnings.warn(f"Invalid version string: {item}", UserWarning) + return False + + if self.key != safe_name(item.base_version).lower(): + # This check is an oversimplification but reflects pkg_resources' intent + # In a real-world scenario, you should compare the package name. + # Since the original code only imports 'packaging' and not a distribution object, + # this check can only be an approximation. + return False + + # The packaging specifier can check against packaging.version.Version objects + # prereleases=True is required to match pkg_resources' default behavior + return self.specifier.contains(item, prereleases=True) + + def __hash__(self): + return self.__hash + + @staticmethod + def parse(s): + reqs = list(parse_requirements(s)) + if not reqs: + raise ValueError(f"Could not parse requirement from string: {s}") + return reqs[0] + + +def yield_lines(iterable: Union[str, list, tuple]) -> List[str]: + """Yield valid lines of a string or iterable, recursively.""" + if isinstance(iterable, str): + return [line for line in iterable.splitlines() if line.strip() and not line.strip().startswith('#')] + + lines = [] + for item in iterable: + lines.extend(yield_lines(item)) + return lines + + +def parse_requirements(strs: Union[str, list, tuple]) -> 'Requirement': + """Yield ``Requirement`` objects for each specification in `strs`.""" + lines = iter(yield_lines(strs)) + + for line in lines: + # Drop comments and handle line continuation + if ' #' in line: + line = line[:line.find(' #')] + + line = line.strip() + + # If there is a line continuation, drop it, and append the next line. + while line.endswith('\\'): + line = line[:-1].strip() + try: + line += next(lines).strip() + except StopIteration: + break # End of lines + + if line: + yield Requirement(line) + + +# --- Ende der Hilfsfunktionen --- + + +PYTHON_ROOT_DIR = osp.dirname(osp.dirname(sys.executable)) +SYSTEM_PYTHON_PREFIX = '/usr/lib/python' + + +class ConfigParsingError(RuntimeError): + """Raise error when failed to parse pure Python style config files.""" + + +def _get_cfg_metainfo(package_path: str, cfg_path: str) -> dict: + """Get target meta information from all 'metafile.yml' defined in `mode- + index.yml` of external package. + + Args: + package_path (str): Path of external package. + cfg_path (str): Name of experiment config. + + Returns: + dict: Meta information of target experiment. + """ + meta_index_path = osp.join(package_path, '.mim', 'model-index.yml') + meta_index = OmegaConf.to_container(OmegaConf.load(meta_index_path), resolve=True) + cfg_dict = dict() + for meta_path in meta_index['Import']: + meta_path = osp.join(package_path, '.mim', meta_path) + cfg_meta = OmegaConf.to_container(OmegaConf.load(meta_path), resolve=True) + for model_cfg in cfg_meta['Models']: + if 'Config' not in model_cfg: + warnings.warn(f'There is not `Config` define in {model_cfg}') + continue + cfg_name = model_cfg['Config'].partition('/')[-1] + # Some config could have multiple weights, we only pick the + # first one. + if cfg_name in cfg_dict: + continue + cfg_dict[cfg_name] = model_cfg + if cfg_path not in cfg_dict: + raise ValueError(f'Expected configs: {cfg_dict.keys()}, but got ' + f'{cfg_path}') + return cfg_dict[cfg_path] + + +def _get_external_cfg_path(package_path: str, cfg_file: str) -> str: + """Get config path of external package. + + Args: + package_path (str): Path of external package. + cfg_file (str): Name of experiment config. + + Returns: + str: Absolute config path from external package. + """ + cfg_file = cfg_file.split('.')[0] + model_cfg = _get_cfg_metainfo(package_path, cfg_file) + cfg_path = osp.join(package_path, model_cfg['Config']) + check_file_exist(cfg_path) + return cfg_path + + +def _get_external_cfg_base_path(package_path: str, cfg_name: str) -> str: + """Get base config path of external package. + + Args: + package_path (str): Path of external package. + cfg_name (str): External relative config path with 'package::'. + + Returns: + str: Absolute config path from external package. + """ + cfg_path = osp.join(package_path, '.mim', 'configs', cfg_name) + check_file_exist(cfg_path) + return cfg_path + + +def _get_package_and_cfg_path(cfg_path: str) -> Tuple[str, str]: + """Get package name and relative config path. + + Args: + cfg_path (str): External relative config path with 'package::'. + + Returns: + Tuple[str, str]: Package name and config path. + """ + if re.match(r'\w*::\w*/\w*', cfg_path) is None: + raise ValueError( + '`_get_package_and_cfg_path` is used for get external package, ' + 'please specify the package name and relative config path, just ' + 'like `mmdet::faster_rcnn/faster-rcnn_r50_fpn_1x_coco.py`') + package_cfg = cfg_path.split('::') + if len(package_cfg) > 2: + raise ValueError('`::` should only be used to separate package and ' + 'config name, but found multiple `::` in ' + f'{cfg_path}') + package, cfg_path = package_cfg + return package, cfg_path + + +class RemoveAssignFromAST(ast.NodeTransformer): + """Remove Assign node if the target's name match the key. + + Args: + key (str): The target name of the Assign node. + """ + + def __init__(self, key): + self.key = key + + def visit_Assign(self, node): + if (isinstance(node.targets[0], ast.Name) + and node.targets[0].id == self.key): + return None + else: + return node + + +def _is_builtin_module(module_name: str) -> bool: + """Check if a module is a built-in module. + + Arg: + module_name: name of module. + """ + if module_name.startswith('.'): + return False + if module_name.startswith('mmengine.config'): + return True + if module_name in sys.builtin_module_names: + return True + spec = find_spec(module_name.split('.')[0]) + # Module not found + if spec is None: + return False + origin_path = getattr(spec, 'origin', None) + if origin_path is None: + return False + origin_path = osp.abspath(origin_path) + if ('site-package' in origin_path or 'dist-package' in origin_path + or not origin_path.startswith( + (PYTHON_ROOT_DIR, SYSTEM_PYTHON_PREFIX))): + return False + else: + return True + + +class ImportTransformer(ast.NodeTransformer): + """Convert the import syntax to the assignment of + :class:`mmengine.config.LazyObject` and preload the base variable before + parsing the configuration file. + """ + + # noqa: E501 + + def __init__(self, + global_dict: dict, + base_dict: Optional[dict] = None, + filename: Optional[str] = None): + self.base_dict = base_dict if base_dict is not None else {} + self.global_dict = global_dict + if isinstance(filename, str): + filename = filename.encode('unicode_escape').decode() + self.filename = filename + self.imported_obj: set = set() + super().__init__() + + def visit_ImportFrom( + self, node: ast.ImportFrom + ) -> Optional[Union[List[ast.Assign], ast.ImportFrom]]: + # Built-in modules will not be parsed as LazyObject + module = f'{node.level * "."}{node.module}' + if _is_builtin_module(module): + # Make sure builtin module will be added into `self.imported_obj` + for alias in node.names: + if alias.asname is not None: + self.imported_obj.add(alias.asname) + elif alias.name == '*': + raise ConfigParsingError( + 'Cannot import * from non-base config') + else: + self.imported_obj.add(alias.name) + return node + + if module in self.base_dict: + for alias_node in node.names: + if alias_node.name == '*': + self.global_dict.update(self.base_dict[module]) + return None + if alias_node.asname is not None: + base_key = alias_node.asname + else: + base_key = alias_node.name + self.global_dict[base_key] = self.base_dict[module][ + alias_node.name] + return None + + nodes: List[ast.Assign] = [] + for alias_node in node.names: + # `ast.alias` has lineno attr after Python 3.10, + if hasattr(alias_node, 'lineno'): + lineno = alias_node.lineno + else: + lineno = node.lineno + if alias_node.name == '*': + raise ConfigParsingError( + 'Illegal syntax in config! `from xxx import *` is not ' + 'allowed to appear outside the `if base:` statement') + elif alias_node.asname is not None: + code = f'{alias_node.asname} = LazyObject("{module}", "{alias_node.name}", "{self.filename}, line {lineno}")' # noqa: E501 + self.imported_obj.add(alias_node.asname) + else: + code = f'{alias_node.name} = LazyObject("{module}", "{alias_node.name}", "{self.filename}, line {lineno}")' # noqa: E501 + self.imported_obj.add(alias_node.name) + try: + nodes.append(ast.parse(code).body[0]) # type: ignore + except Exception as e: + raise ConfigParsingError( + f'Cannot import {alias_node} from {module}' + '1. Cannot import * from 3rd party lib in the config ' + 'file\n' + '2. Please check if the module is a base config which ' + 'should be added to `_base_`\n') from e + return nodes + + def visit_Import(self, node) -> Union[ast.Assign, ast.Import]: + """Work with ``_gather_abs_import_lazyobj`` to hack the ``import ...`` + syntax. + """ + alias_list = node.names + assert len(alias_list) == 1, ( + 'Illegal syntax in config! import multiple modules in one line is ' + 'not supported') + # TODO Support multiline import + alias = alias_list[0] + if alias.asname is not None: + self.imported_obj.add(alias.asname) + if _is_builtin_module(alias.name.split('.')[0]): + return node + return ast.parse( # type: ignore + f'{alias.asname} = LazyObject(' + f'"{alias.name}",' + f'location="{self.filename}, line {node.lineno}")').body[0] + return node + + +def _gather_abs_import_lazyobj(tree: ast.Module, + filename: Optional[str] = None): + """Experimental implementation of gathering absolute import information.""" + if isinstance(filename, str): + filename = filename.encode('unicode_escape').decode() + imported = defaultdict(list) + abs_imported = set() + new_body: List[ast.stmt] = [] + # module2node is used to get lineno when Python < 3.10 + module2node: dict = dict() + for node in tree.body: + if isinstance(node, ast.Import): + for alias in node.names: + # Skip converting built-in module to LazyObject + if _is_builtin_module(alias.name): + new_body.append(node) + continue + module = alias.name.split('.')[0] + module2node.setdefault(module, node) + imported[module].append(alias) + continue + new_body.append(node) + + for key, value in imported.items(): + names = [_value.name for _value in value] + if hasattr(value[0], 'lineno'): + lineno = value[0].lineno + else: + lineno = module2node[key].lineno + lazy_module_assign = ast.parse( + f'{key} = LazyObject({names}, location="{filename}, line {lineno}")' # noqa: E501 + ) # noqa: E501 + abs_imported.add(key) + new_body.insert(0, lazy_module_assign.body[0]) + tree.body = new_body + return tree, abs_imported + + +def get_installed_path(package: str) -> str: + """Get installed path of package. + + Replaced: + from pkg_resources import DistributionNotFound, get_distribution + + Uses: + importlib.metadata + + Args: + package (str): Name of package. + """ + try: + # 1. Try with importlib.metadata + pkg = importlib.metadata.distribution(package) + # pkg.locate is the directory containing the package, similar to pkg.location + possible_path = osp.join(pkg.locate(), package2module(package)) # Use package2module to ensure correct module dir + + # Check if the main package dir exists in the location + if osp.exists(possible_path): + return possible_path + # Fallback to the distribution location itself (e.g., for namespace packages) + return pkg.locate() + + except importlib.metadata.PackageNotFoundError as e: + # 2. If not found via metadata, check PYTHONPATH/sys.path via importlib.util.find_spec + spec = importlib.util.find_spec(package) + if spec is not None: + if spec.origin is not None: + # spec.origin is the path to the __init__.py or .py file + return osp.dirname(spec.origin) + else: + # Namespace packages don't have an origin but a spec exists + raise RuntimeError( + f'{package} is a namespace package, which is invalid ' + 'for `get_install_path` in this context') + else: + # Re-raise the original not found error, but as the new type + raise DistributionNotFound( + f"The 'Distribution' '{package}' was not found and is required" + ) from e + + +def import_modules_from_strings(imports, allow_failed_imports=False): + """Import modules from the given list of strings. + + Args: + imports (list | str | None): The given module names to be imported. + allow_failed_imports (bool): If True, the failed imports will return + None. Otherwise, an ImportError is raise. Defaults to False. + + Returns: + list[module] | module | None: The imported modules. + """ + if not imports: + return + single_import = False + if isinstance(imports, str): + single_import = True + imports = [imports] + if not isinstance(imports, list): + raise TypeError( + f'custom_imports must be a list but got type {type(imports)}') + imported = [] + for imp in imports: + if not isinstance(imp, str): + raise TypeError( + f'{imp} is of type {type(imp)} and cannot be imported.') + try: + imported_tmp = import_module(imp) + except ImportError: + if allow_failed_imports: + warnings.warn(f'{imp} failed to import and is ignored.', + UserWarning) + imported_tmp = None + else: + raise ImportError(f'Failed to import {imp}') + imported.append(imported_tmp) + if single_import: + imported = imported[0] + return imported + + +def import_module(name, package=None): + """Import a module, optionally supporting relative imports.""" + return real_import_module(name, package) + + +def is_installed(package: str) -> bool: + """Check package whether installed. + + Replaced: + import pkg_resources + from pkg_resources import get_distribution + + Uses: + importlib.metadata + + Args: + package (str): Name of package to be checked. + """ + # Note: importlib.metadata.distribution() is generally the most reliable check + # for an installed package (e.g., via pip/wheel). + + # 1. Check via importlib.metadata.distribution + try: + importlib.metadata.distribution(package) + return True + except importlib.metadata.PackageNotFoundError: + pass # Continue to step 2 + + # 2. Fallback check for packages potentially in PYTHONPATH without full metadata + spec = importlib.util.find_spec(package) + if spec is not None: + # If spec.origin is None, it's a namespace package (which is "found" but not installed like a normal package) + # If spec.origin is not None, it's a module/package file that was found. + return spec.origin is not None + + return False + + +def dump(obj, file=None, file_format=None, **kwargs): + """Dump data to json/yaml/pickle strings or files (mmengine-like replacement).""" + if isinstance(file, Path): + file = str(file) + + # Guess file format if not explicitly given + if file_format is None: + if isinstance(file, str): + file_format = file.split('.')[-1].lower() + elif file is None: + raise ValueError("file_format must be specified if file is None") + + if file_format not in ['json', 'yaml', 'yml', 'pkl', 'pickle']: + raise TypeError(f"Unsupported file format: {file_format}") + + # Convert YAML extension + if file_format == 'yml': + file_format = 'yaml' + if file_format == 'pickle': + file_format = 'pkl' + + # Handle output to string + if file is None: + if file_format == 'json': + return json.dumps(obj, indent=4, **kwargs) + elif file_format == 'yaml': + return yaml.dump(obj, **kwargs) + elif file_format == 'pkl': + return pickle.dumps(obj, **kwargs) + + # Handle output to file + mode = 'w' if file_format in ['json', 'yaml'] else 'wb' + with open(file, mode, encoding='utf-8' if 'b' not in mode else None) as f: + if file_format == 'json': + json.dump(obj, f, indent=4, **kwargs) + elif file_format == 'yaml': + yaml.dump(obj, f, **kwargs) + elif file_format == 'pkl': + pickle.dump(obj, f, **kwargs) + + return True + + +def check_file_exist(filename, msg_tmpl='file "{}" does not exist'): + if not osp.isfile(filename): + raise FileNotFoundError(msg_tmpl.format(filename)) + + +def highlighted_error(msg: Union[str, Exception]) -> str: + # Assuming 'click' is installed or this is a placeholder + # If not using click, you can replace it with a simple string formatting for bold/red + try: + import click + return click.style(str(msg), fg='red', bold=True) + except ImportError: + return f"[ERROR] {msg}" \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b0.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b0.py new file mode 100644 index 0000000000000000000000000000000000000000..190116fdfb704b9a26a19e4393831f8495604f8b --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b0.py @@ -0,0 +1,28 @@ +norm_cfg = dict(type='SyncBN', requires_grad=True) +backbone = dict( + type='MixVisionTransformer', + in_channels=3, + embed_dims=32, + num_stages=4, + num_layers=[2, 2, 2, 2], + num_heads=[1, 2, 5, 8], + patch_sizes=[7, 3, 3, 3], + sr_ratios=[8, 4, 2, 1], + out_indices=(0, 1, 2, 3), + mlp_ratio=4, + qkv_bias=True, + drop_rate=0.0, + attn_drop_rate=0.0, + drop_path_rate=0.1 +) +decode_head = dict( + type='SegformerHead', + in_channels=[32, 64, 160, 256], + in_index=[0, 1, 2, 3], + channels=256, + dropout_ratio=0.1, + out_channels=19, + norm_cfg=norm_cfg, + align_corners=False, + interpolate_mode='bilinear' +) diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b1.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b1.py new file mode 100644 index 0000000000000000000000000000000000000000..aa94b65b10462798745ae3a655a31cb2cfddae38 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b1.py @@ -0,0 +1,8 @@ +_base_ = ['./segformer_mit_b0.py'] + +backbone = dict( + embed_dims=64, +) +decode_head = dict( + in_channels=[64, 128, 320, 512] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b2.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b2.py new file mode 100644 index 0000000000000000000000000000000000000000..37bc4f053400a44d19c0f078bc4bc0add50f9bf6 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b2.py @@ -0,0 +1,6 @@ +_base_ = ['./segformer_mit_b1.py'] + +backbone = dict( + embed_dims=64, + num_layers=[3, 4, 6, 3] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b3.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b3.py new file mode 100644 index 0000000000000000000000000000000000000000..a1d8cfe7cc6881747449b9a906dd95b1d44fe24b --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b3.py @@ -0,0 +1,6 @@ +_base_ = ['./segformer_mit_b1.py'] + +backbone = dict( + embed_dims=64, + num_layers=[3, 4, 18, 3] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b4.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b4.py new file mode 100644 index 0000000000000000000000000000000000000000..77a40dc5b9c8cb31ee642ab77ba10db2ff88038b --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b4.py @@ -0,0 +1,6 @@ +_base_ = ['./segformer_mit_b1.py'] + +backbone = dict( + embed_dims=64, + num_layers=[3, 8, 27, 3] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b5.py b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b5.py new file mode 100644 index 0000000000000000000000000000000000000000..9f893bed2f5345466130512f0e912814594e1f9b --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/configs/segformer_mit_b5.py @@ -0,0 +1,6 @@ +_base_ = ['./segformer_mit_b1.py'] + +backbone = dict( + embed_dims=64, + num_layers=[3, 6, 40, 3] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/model/__init__.py b/model_without_OpenMMLab/segformer_plusplus/model/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b680692d5ff945d85311a8c90c70766275444498 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/__init__.py @@ -0,0 +1 @@ +__all__ = [] \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..34cac67bf7686934dfea67cb1b82bba6f374a50f Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/base_module.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/base_module.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..4c68405d60bb6a0453a3d84b6e7a0d99839d11f2 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/base_module.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/utils.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/utils.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..f9e32b03f28702fbaca5afb34012ecfe65eda973 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/utils.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/weight_init.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/weight_init.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..457eecff1946f5472ef0a5b809e16c0a3ac24590 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/__pycache__/weight_init.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/backbone/__init__.py b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..327cab4e0e6bf60da6d913eab06c401705d109d7 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__init__.py @@ -0,0 +1,3 @@ +from .mit import MixVisionTransformer + +__all__ = ['MixVisionTransformer'] \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..a533d5f81f70bf92173545a7c8fdeac04c635936 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/mit.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/mit.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..76f843ecbe191ac03709931dd0a8dea1154268f0 Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/backbone/__pycache__/mit.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/backbone/mit.py b/model_without_OpenMMLab/segformer_plusplus/model/backbone/mit.py new file mode 100644 index 0000000000000000000000000000000000000000..f85bdf11e922a7168bc182541389e266325c4012 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/backbone/mit.py @@ -0,0 +1,477 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import math +import torch +import torch.nn as nn +import torch.utils.checkpoint as cp +from tomesd.merge import bipartite_soft_matching_random2d + +from ...utils import PatchEmbed +from ...utils import nchw_to_nlc, nlc_to_nchw +from ...utils import MODELS +from ...utils import Conv2d, build_activation_layer, build_norm_layer, build_dropout +from ..base_module import BaseModule, MultiheadAttention, ModuleList, Sequential +from ..weight_init import (constant_init, normal_init, + trunc_normal_init) + + +class MixFFN(BaseModule): + """An implementation of MixFFN of Segformer. + + The differences between MixFFN & FFN: + 1. Use 1X1 Conv to replace Linear layer. + 2. Introduce 3X3 Conv to encode positional information. + Args: + embed_dims (int): The feature dimension. Same as + `MultiheadAttention`. Defaults: 256. + feedforward_channels (int): The hidden dimension of FFNs. + Defaults: 1024. + act_cfg (dict, optional): The activation config for FFNs. + Default: dict(type='ReLU') + ffn_drop (float, optional): Probability of an element to be + zeroed in FFN. Default 0.0. + dropout_layer (obj:`ConfigDict`): The dropout_layer used + when adding the shortcut. + init_cfg (obj:`mmcv.ConfigDict`): The Config for initialization. + Default: None. + """ + + def __init__(self, + embed_dims, + feedforward_channels, + act_cfg=dict(type='GELU'), + ffn_drop=0., + dropout_layer=None, + init_cfg=None): + super().__init__(init_cfg) + + self.embed_dims = embed_dims + self.feedforward_channels = feedforward_channels + self.act_cfg = act_cfg + self.activate = build_activation_layer(act_cfg) + + in_channels = embed_dims + fc1 = Conv2d( + in_channels=in_channels, + out_channels=feedforward_channels, + kernel_size=1, + stride=1, + bias=True) + # 3x3 depth wise conv to provide positional encode information + pe_conv = Conv2d( + in_channels=feedforward_channels, + out_channels=feedforward_channels, + kernel_size=3, + stride=1, + padding=(3 - 1) // 2, + bias=True, + groups=feedforward_channels) + fc2 = Conv2d( + in_channels=feedforward_channels, + out_channels=in_channels, + kernel_size=1, + stride=1, + bias=True) + drop = nn.Dropout(ffn_drop) + layers = [fc1, pe_conv, self.activate, drop, fc2, drop] + self.layers = Sequential(*layers) + self.dropout_layer = build_dropout( + dropout_layer) if dropout_layer else torch.nn.Identity() + + def forward(self, x, hw_shape, identity=None): + out = nlc_to_nchw(x, hw_shape) + out = self.layers(out) + out = nchw_to_nlc(out) + if identity is None: + identity = x + return identity + self.dropout_layer(out) + + +class EfficientMultiheadAttention(MultiheadAttention): + """An implementation of Efficient Multi-head Attention of Segformer. + + This module is modified from MultiheadAttention which is a module from + mmcv.cnn.bricks.transformer. + Args: + embed_dims (int): The embedding dimension. + num_heads (int): Parallel attention heads. + attn_drop (float): A Dropout layer on attn_output_weights. + Default: 0.0. + proj_drop (float): A Dropout layer after `nn.MultiheadAttention`. + Default: 0.0. + dropout_layer (obj:`ConfigDict`): The dropout_layer used + when adding the shortcut. Default: None. + init_cfg (obj:`mmcv.ConfigDict`): The Config for initialization. + Default: None. + batch_first (bool): Key, Query and Value are shape of + (batch, n, embed_dim) + or (n, batch, embed_dim). Default: False. + qkv_bias (bool): enable bias for qkv if True. Default True. + norm_cfg (dict): Config dict for normalization layer. + Default: dict(type='LN'). + sr_ratio (int): The ratio of spatial reduction of Efficient Multi-head + Attention of Segformer. Default: 1. + """ + + def __init__(self, + embed_dims, + num_heads, + attn_drop=0., + proj_drop=0., + dropout_layer=None, + init_cfg=None, + batch_first=True, + qkv_bias=False, + tome_cfg=dict(), + norm_cfg=dict(type='LN'), + sr_ratio=1): + super().__init__( + embed_dims, + num_heads, + attn_drop, + proj_drop, + dropout_layer=dropout_layer, + init_cfg=init_cfg, + batch_first=batch_first, + bias=qkv_bias) + + self.q_mode = tome_cfg.get('q_mode') + self.kv_mode = tome_cfg.get('kv_mode') + self.tome_cfg = tome_cfg + + self.sr_ratio = sr_ratio + if sr_ratio > 1: + self.sr = Conv2d( + in_channels=embed_dims, + out_channels=embed_dims, + kernel_size=sr_ratio, + stride=sr_ratio) + # The ret[0] of build_norm_layer is norm name. + self.norm = build_norm_layer(norm_cfg, embed_dims)[1] + + def forward(self, x, hw_shape, identity=None): + x_q = x + + if self.sr_ratio > 1: + x_kv = nlc_to_nchw(x, hw_shape) + x_kv = self.sr(x_kv) + x_kv = nchw_to_nlc(x_kv) + x_kv = self.norm(x_kv) + else: + x_kv = x + + # 2D Neighbour Merging KV + if self.kv_mode == 'n2d': + kv_hw_shape = (int(hw_shape[0] / self.sr_ratio), int(hw_shape[1] / self.sr_ratio)) + x_kv = nlc_to_nchw(x_kv, kv_hw_shape) + x_kv = torch.nn.functional.avg_pool2d(x_kv, kernel_size=self.tome_cfg['kv_s'], + stride=self.tome_cfg['kv_s'], + ceil_mode=True) + x_kv = nchw_to_nlc(x_kv) + + # Bipartite Soft Matching (tomesd) KV + if self.kv_mode == 'bsm': + w_kv = int(hw_shape[1] / self.sr_ratio) + h_kv = int(hw_shape[0] / self.sr_ratio) + merge, unmerge = bipartite_soft_matching_random2d(metric=x_kv, w=w_kv, h=h_kv, + r=int(x_kv.size()[1] * self.tome_cfg['kv_r']), + sx=self.tome_cfg['kv_sx'], sy=self.tome_cfg['kv_sy'], + no_rand=True) + x_kv = merge(x_kv) + + if identity is None: + identity = x_q + + # 1D Neighbor Merging Q + if self.q_mode == 'n1d': + x_q = x_q.transpose(-2, -1) + x_q = torch.nn.functional.avg_pool1d(x_q, kernel_size=self.tome_cfg['q_s'], + stride=self.tome_cfg['q_s'], + ceil_mode=True) + x_q = x_q.transpose(-2, -1) + + # 2D Neighbor Merging Q + if self.q_mode == 'n2d': + reduced_hw = (int(torch.ceil(torch.tensor(hw_shape[0] / self.tome_cfg['q_s'][0]))), + int(torch.ceil(torch.tensor(hw_shape[1] / self.tome_cfg['q_s'][1])))) + x_q = nlc_to_nchw(x_q, hw_shape) + x_q = torch.nn.functional.avg_pool2d(x_q, kernel_size=self.tome_cfg['q_s'], + stride=self.tome_cfg['q_s'], + ceil_mode=True) + x_q = nchw_to_nlc(x_q) + + # Bipartite Soft Matching (tomesd) Q + if self.q_mode == 'bsm': + merge, unmerge = bipartite_soft_matching_random2d(metric=x_q, w=hw_shape[1], h=hw_shape[0], + r=int(x_q.size()[1] * self.tome_cfg['q_r']), + sx=self.tome_cfg['q_sx'], sy=self.tome_cfg['q_sy'], + no_rand=True) + x_q = merge(x_q) + + # Because the dataflow('key', 'query', 'value') of + # ``torch.nn.MultiheadAttention`` is (num_query, batch, + # embed_dims), We should adjust the shape of dataflow from + # batch_first (batch, num_query, embed_dims) to num_query_first + # (num_query ,batch, embed_dims), and recover ``attn_output`` + # from num_query_first to batch_first. + + if self.batch_first: + x_q = x_q.transpose(0, 1) + x_kv = x_kv.transpose(0, 1) + out = self.attn(query=x_q, key=x_kv, value=x_kv)[0] + if self.batch_first: + out = out.transpose(0, 1) + + # Unmerging BSM (tome+tomesd) + if self.q_mode == 'bsm': + out = unmerge(out) + + # Unmerging 1D Neighbour Merging + if self.q_mode == 'n1d': + out = out.transpose(-2, -1) + out = torch.nn.functional.interpolate(out, size=identity.size()[-2]) + out = out.transpose(-2, -1) + + # Unmerging 2D Neighbor Merging + if self.q_mode == 'n2d': + out = nlc_to_nchw(out, reduced_hw) + out = torch.nn.functional.interpolate(out, size=hw_shape) + out = nchw_to_nlc(out) + + return identity + self.dropout_layer(self.proj_drop(out)) + + +class TransformerEncoderLayer(BaseModule): + """Implements one encoder layer in Segformer. + + Args: + embed_dims (int): The feature dimension. + num_heads (int): Parallel attention heads. + feedforward_channels (int): The hidden dimension for FFNs. + drop_rate (float): Probability of an element to be zeroed. + after the feed forward layer. Default 0.0. + attn_drop_rate (float): The drop out rate for attention layer. + Default 0.0. + drop_path_rate (float): stochastic depth rate. Default 0.0. + qkv_bias (bool): enable bias for qkv if True. + Default: True. + act_cfg (dict): The activation config for FFNs. + Default: dict(type='GELU'). + norm_cfg (dict): Config dict for normalization layer. + Default: dict(type='LN'). + batch_first (bool): Key, Query and Value are shape of + (batch, n, embed_dim) + or (n, batch, embed_dim). Default: False. + init_cfg (dict, optional): Initialization config dict. + Default:None. + sr_ratio (int): The ratio of spatial reduction of Efficient Multi-head + Attention of Segformer. Default: 1. + with_cp (bool): Use checkpoint or not. Using checkpoint will save + some memory while slowing down the training speed. Default: False. + """ + + def __init__(self, + embed_dims, + num_heads, + feedforward_channels, + drop_rate=0., + attn_drop_rate=0., + drop_path_rate=0., + qkv_bias=True, + tome_cfg=dict(), + act_cfg=dict(type='GELU'), + norm_cfg=dict(type='LN'), + batch_first=True, + sr_ratio=1, + with_cp=False): + super().__init__() + + # The ret[0] of build_norm_layer is norm name. + self.norm1 = build_norm_layer(norm_cfg, embed_dims)[1] + + self.attn = EfficientMultiheadAttention( + embed_dims=embed_dims, + num_heads=num_heads, + attn_drop=attn_drop_rate, + proj_drop=drop_rate, + dropout_layer=dict(type='DropPath', drop_prob=drop_path_rate), + batch_first=batch_first, + qkv_bias=qkv_bias, + tome_cfg=tome_cfg, + norm_cfg=norm_cfg, + sr_ratio=sr_ratio) + + # The ret[0] of build_norm_layer is norm name. + self.norm2 = build_norm_layer(norm_cfg, embed_dims)[1] + + self.ffn = MixFFN( + embed_dims=embed_dims, + feedforward_channels=feedforward_channels, + ffn_drop=drop_rate, + dropout_layer=dict(type='DropPath', drop_prob=drop_path_rate), + act_cfg=act_cfg) + + self.with_cp = with_cp + + def forward(self, x, hw_shape): + + def _inner_forward(x): + x = self.attn(self.norm1(x), hw_shape, identity=x) + x = self.ffn(self.norm2(x), hw_shape, identity=x) + return x + + if self.with_cp and x.requires_grad: + x = cp.checkpoint(_inner_forward, x) + else: + x = _inner_forward(x) + return x + + +@MODELS.register_module() +class MixVisionTransformer(BaseModule): + """The backbone of Segformer. + + This backbone is the implementation of `SegFormer: Simple and + Efficient Design for Semantic Segmentation with + Transformers `_. + Args: + in_channels (int): Number of input channels. Default: 3. + embed_dims (int): Embedding dimension. Default: 768. + num_stags (int): The num of stages. Default: 4. + num_layers (Sequence[int]): The layer number of each transformer encode + layer. Default: [3, 4, 6, 3]. + num_heads (Sequence[int]): The attention heads of each transformer + encode layer. Default: [1, 2, 4, 8]. + patch_sizes (Sequence[int]): The patch_size of each overlapped patch + embedding. Default: [7, 3, 3, 3]. + strides (Sequence[int]): The stride of each overlapped patch embedding. + Default: [4, 2, 2, 2]. + sr_ratios (Sequence[int]): The spatial reduction rate of each + transformer encode layer. Default: [8, 4, 2, 1]. + out_indices (Sequence[int] | int): Output from which stages. + Default: (0, 1, 2, 3). + mlp_ratio (int): ratio of mlp hidden dim to embedding dim. + Default: 4. + qkv_bias (bool): Enable bias for qkv if True. Default: True. + drop_rate (float): Probability of an element to be zeroed. + Default 0.0 + attn_drop_rate (float): The drop out rate for attention layer. + Default 0.0 + drop_path_rate (float): stochastic depth rate. Default 0.0 + norm_cfg (dict): Config dict for normalization layer. + Default: dict(type='LN') + act_cfg (dict): The activation config for FFNs. + Default: dict(type='GELU'). + pretrained (str, optional): model pretrained path. Default: None. + init_cfg (dict or list[dict], optional): Initialization config dict. + Default: None. + with_cp (bool): Use checkpoint or not. Using checkpoint will save + some memory while slowing down the training speed. Default: False. + """ + + def __init__(self, + in_channels=3, + embed_dims=64, + num_stages=4, + num_layers=[3, 4, 6, 3], + num_heads=[1, 2, 4, 8], + patch_sizes=[7, 3, 3, 3], + strides=[4, 2, 2, 2], + sr_ratios=[8, 4, 2, 1], + out_indices=(0, 1, 2, 3), + mlp_ratio=4, + qkv_bias=True, + drop_rate=0., + attn_drop_rate=0., + drop_path_rate=0., + tome_cfg=[dict(), dict(), dict(), dict()], + act_cfg=dict(type='GELU'), + norm_cfg=dict(type='LN', eps=1e-6), + init_cfg=None, + with_cp=False, + down_sample=False): + super().__init__(init_cfg=init_cfg) + + self.embed_dims = embed_dims + self.num_stages = num_stages + self.num_layers = num_layers + self.num_heads = num_heads + self.patch_sizes = patch_sizes + self.strides = strides + self.sr_ratios = sr_ratios + self.with_cp = with_cp + self.down_sample = down_sample + assert num_stages == len(num_layers) == len(num_heads) \ + == len(patch_sizes) == len(strides) == len(sr_ratios) + + self.out_indices = out_indices + assert max(out_indices) < self.num_stages + + # transformer encoder + dpr = [ + x.item() + for x in torch.linspace(0, drop_path_rate, sum(num_layers)) + ] # stochastic num_layer decay rule + + cur = 0 + self.layers = ModuleList() + for i, num_layer in enumerate(num_layers): + embed_dims_i = embed_dims * num_heads[i] + patch_embed = PatchEmbed( + in_channels=in_channels, + embed_dims=embed_dims_i, + kernel_size=patch_sizes[i], + stride=strides[i], + padding=patch_sizes[i] // 2, + norm_cfg=norm_cfg) + layer = ModuleList([ + TransformerEncoderLayer( + embed_dims=embed_dims_i, + num_heads=num_heads[i], + feedforward_channels=mlp_ratio * embed_dims_i, + drop_rate=drop_rate, + attn_drop_rate=attn_drop_rate, + drop_path_rate=dpr[cur + idx], + qkv_bias=qkv_bias, + tome_cfg=tome_cfg[i], + act_cfg=act_cfg, + norm_cfg=norm_cfg, + with_cp=with_cp, + sr_ratio=sr_ratios[i]) for idx in range(num_layer) + ]) + in_channels = embed_dims_i + # The ret[0] of build_norm_layer is norm name. + norm = build_norm_layer(norm_cfg, embed_dims_i)[1] + self.layers.append(ModuleList([patch_embed, layer, norm])) + cur += num_layer + + def init_weights(self): + if self.init_cfg is None: + for m in self.modules(): + if isinstance(m, nn.Linear): + trunc_normal_init(m, std=.02, bias=0.) + elif isinstance(m, nn.LayerNorm): + constant_init(m, val=1.0, bias=0.) + elif isinstance(m, nn.Conv2d): + fan_out = m.kernel_size[0] * m.kernel_size[ + 1] * m.out_channels + fan_out //= m.groups + normal_init( + m, mean=0, std=math.sqrt(2.0 / fan_out), bias=0) + else: + super().init_weights() + + def forward(self, x): + if self.down_sample: + x = torch.nn.functional.interpolate(x, scale_factor=(0.5, 0.5)) + outs = [] + + for i, layer in enumerate(self.layers): + x, hw_shape = layer[0](x) + for block in layer[1]: + x = block(x, hw_shape) + x = layer[2](x) + x = nlc_to_nchw(x, hw_shape) + if i in self.out_indices: + outs.append(x) + + return outs diff --git a/model_without_OpenMMLab/segformer_plusplus/model/base_module.py b/model_without_OpenMMLab/segformer_plusplus/model/base_module.py new file mode 100644 index 0000000000000000000000000000000000000000..8c0a1e8611bbafda8354d4aa77485772fdbc6a93 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/base_module.py @@ -0,0 +1,390 @@ +import copy +from abc import ABCMeta +from collections import defaultdict +from typing import Iterable, List, Optional, Union, Callable +import warnings +from inspect import getfullargspec +import functools +import torch.nn as nn + +from .utils import is_model_wrapper +from .weight_init import PretrainedInit, initialize, update_init_info +from ..utils.activation import build_dropout +from ..utils.registry import MODELS + + +class BaseModule(nn.Module, metaclass=ABCMeta): + """Base module for all modules in openmmlab. ``BaseModule`` is a wrapper of + ``torch.nn.Module`` with additional functionality of parameter + initialization. Compared with ``torch.nn.Module``, ``BaseModule`` mainly + adds three attributes. + + - ``init_cfg``: the config to control the initialization. + - ``init_weights``: The function of parameter initialization and recording + initialization information. + - ``_params_init_info``: Used to track the parameter initialization + information. This attribute only exists during executing the + ``init_weights``. + + Note: + :obj:`PretrainedInit` has a higher priority than any other + initializer. The loaded pretrained weights will overwrite + the previous initialized weights. + + Args: + init_cfg (dict or List[dict], optional): Initialization config dict. + """ + + def __init__(self, init_cfg: Union[dict, List[dict], None] = None): + """Initialize BaseModule, inherited from `torch.nn.Module`""" + + # NOTE init_cfg can be defined in different levels, but init_cfg + # in low levels has a higher priority. + + super().__init__() + # define default value of init_cfg instead of hard code + # in init_weights() function + self._is_init = False + + self.init_cfg = copy.deepcopy(init_cfg) + + # Backward compatibility in derived classes + # if pretrained is not None: + # warnings.warn('DeprecationWarning: pretrained is a deprecated \ + # key, please consider using init_cfg') + # self.init_cfg = dict(type='Pretrained', checkpoint=pretrained) + + @property + def is_init(self): + return self._is_init + + @is_init.setter + def is_init(self, value): + self._is_init = value + + def init_weights(self): + """Initialize the weights.""" + + is_top_level_module = False + # check if it is top-level module + if not hasattr(self, '_params_init_info'): + # The `_params_init_info` is used to record the initialization + # information of the parameters + # the key should be the obj:`nn.Parameter` of model and the value + # should be a dict containing + # - init_info (str): The string that describes the initialization. + # - tmp_mean_value (FloatTensor): The mean of the parameter, + # which indicates whether the parameter has been modified. + # this attribute would be deleted after all parameters + # is initialized. + self._params_init_info = defaultdict(dict) + is_top_level_module = True + + # Initialize the `_params_init_info`, + # When detecting the `tmp_mean_value` of + # the corresponding parameter is changed, update related + # initialization information + for name, param in self.named_parameters(): + self._params_init_info[param][ + 'init_info'] = f'The value is the same before and ' \ + f'after calling `init_weights` ' \ + f'of {self.__class__.__name__} ' + self._params_init_info[param][ + 'tmp_mean_value'] = param.data.mean().cpu() + + # pass `params_init_info` to all submodules + # All submodules share the same `params_init_info`, + # so it will be updated when parameters are + # modified at any level of the model. + for sub_module in self.modules(): + sub_module._params_init_info = self._params_init_info + + module_name = self.__class__.__name__ + if not self._is_init: + if self.init_cfg: + + init_cfgs = self.init_cfg + if isinstance(self.init_cfg, dict): + init_cfgs = [self.init_cfg] + + # PretrainedInit has higher priority than any other init_cfg. + # Therefore we initialize `pretrained_cfg` last to overwrite + # the previous initialized weights. + # See details in https://github.com/open-mmlab/mmengine/issues/691 # noqa E501 + other_cfgs = [] + pretrained_cfg = [] + for init_cfg in init_cfgs: + assert isinstance(init_cfg, dict) + if (init_cfg['type'] == 'Pretrained' + or init_cfg['type'] is PretrainedInit): + pretrained_cfg.append(init_cfg) + else: + other_cfgs.append(init_cfg) + + initialize(self, other_cfgs) + + for m in self.children(): + if is_model_wrapper(m) and not hasattr(m, 'init_weights'): + m = m.module + if hasattr(m, 'init_weights') and not getattr( + m, 'is_init', False): + m.init_weights() + # users may overload the `init_weights` + update_init_info( + m, + init_info=f'Initialized by ' + f'user-defined `init_weights`' + f' in {m.__class__.__name__} ') + if self.init_cfg and pretrained_cfg: + initialize(self, pretrained_cfg) + self._is_init = True + + if is_top_level_module: + self._dump_init_info() + + for sub_module in self.modules(): + del sub_module._params_init_info + + def __repr__(self): + s = super().__repr__() + if self.init_cfg: + s += f'\ninit_cfg={self.init_cfg}' + return s + + +def deprecated_api_warning(name_dict: dict, + cls_name: Optional[str] = None) -> Callable: + """A decorator to check if some arguments are deprecate and try to replace + deprecate src_arg_name to dst_arg_name. + + Args: + name_dict(dict): + key (str): Deprecate argument names. + val (str): Expected argument names. + + Returns: + func: New function. + """ + + def api_warning_wrapper(old_func): + + @functools.wraps(old_func) + def new_func(*args, **kwargs): + # get the arg spec of the decorated method + args_info = getfullargspec(old_func) + # get name of the function + func_name = old_func.__name__ + if cls_name is not None: + func_name = f'{cls_name}.{func_name}' + if args: + arg_names = args_info.args[:len(args)] + for src_arg_name, dst_arg_name in name_dict.items(): + if src_arg_name in arg_names: + warnings.warn( + f'"{src_arg_name}" is deprecated in ' + f'`{func_name}`, please use "{dst_arg_name}" ' + 'instead', DeprecationWarning) + arg_names[arg_names.index(src_arg_name)] = dst_arg_name + if kwargs: + for src_arg_name, dst_arg_name in name_dict.items(): + if src_arg_name in kwargs: + assert dst_arg_name not in kwargs, ( + f'The expected behavior is to replace ' + f'the deprecated key `{src_arg_name}` to ' + f'new key `{dst_arg_name}`, but got them ' + f'in the arguments at the same time, which ' + f'is confusing. `{src_arg_name} will be ' + f'deprecated in the future, please ' + f'use `{dst_arg_name}` instead.') + + warnings.warn( + f'"{src_arg_name}" is deprecated in ' + f'`{func_name}`, please use "{dst_arg_name}" ' + 'instead', DeprecationWarning) + kwargs[dst_arg_name] = kwargs.pop(src_arg_name) + + # apply converted arguments to the decorated method + output = old_func(*args, **kwargs) + return output + + return new_func + + return api_warning_wrapper + + +@MODELS.register_module() +class MultiheadAttention(BaseModule): + """A wrapper for ``torch.nn.MultiheadAttention``. + + This module implements MultiheadAttention with identity connection, + and positional encoding is also passed as input. + + Args: + embed_dims (int): The embedding dimension. + num_heads (int): Parallel attention heads. + attn_drop (float): A Dropout layer on attn_output_weights. + Default: 0.0. + proj_drop (float): A Dropout layer after `nn.MultiheadAttention`. + Default: 0.0. + dropout_layer (obj:`ConfigDict`): The dropout_layer used + when adding the shortcut. + init_cfg (obj:`mmcv.ConfigDict`): The Config for initialization. + Default: None. + batch_first (bool): When it is True, Key, Query and Value are shape of + (batch, n, embed_dim), otherwise (n, batch, embed_dim). + Default to False. + """ + + def __init__(self, + embed_dims, + num_heads, + attn_drop=0., + proj_drop=0., + dropout_layer=dict(type='Dropout', drop_prob=0.), + init_cfg=None, + batch_first=False, + **kwargs): + super().__init__(init_cfg) + if 'dropout' in kwargs: + warnings.warn( + 'The arguments `dropout` in MultiheadAttention ' + 'has been deprecated, now you can separately ' + 'set `attn_drop`(float), proj_drop(float), ' + 'and `dropout_layer`(dict) ', DeprecationWarning) + attn_drop = kwargs['dropout'] + dropout_layer['drop_prob'] = kwargs.pop('dropout') + + self.embed_dims = embed_dims + self.num_heads = num_heads + self.batch_first = batch_first + + self.attn = nn.MultiheadAttention(embed_dims, num_heads, attn_drop, + **kwargs) + + self.proj_drop = nn.Dropout(proj_drop) + self.dropout_layer = build_dropout( + dropout_layer) if dropout_layer else nn.Identity() + + @deprecated_api_warning({'residual': 'identity'}, + cls_name='MultiheadAttention') + def forward(self, + query, + key=None, + value=None, + identity=None, + query_pos=None, + key_pos=None, + attn_mask=None, + key_padding_mask=None, + **kwargs): + """Forward function for `MultiheadAttention`. + + **kwargs allow passing a more general data flow when combining + with other operations in `transformerlayer`. + + Args: + query (Tensor): The input query with shape [num_queries, bs, + embed_dims] if self.batch_first is False, else + [bs, num_queries embed_dims]. + key (Tensor): The key tensor with shape [num_keys, bs, + embed_dims] if self.batch_first is False, else + [bs, num_keys, embed_dims] . + If None, the ``query`` will be used. Defaults to None. + value (Tensor): The value tensor with same shape as `key`. + Same in `nn.MultiheadAttention.forward`. Defaults to None. + If None, the `key` will be used. + identity (Tensor): This tensor, with the same shape as x, + will be used for the identity link. + If None, `x` will be used. Defaults to None. + query_pos (Tensor): The positional encoding for query, with + the same shape as `x`. If not None, it will + be added to `x` before forward function. Defaults to None. + key_pos (Tensor): The positional encoding for `key`, with the + same shape as `key`. Defaults to None. If not None, it will + be added to `key` before forward function. If None, and + `query_pos` has the same shape as `key`, then `query_pos` + will be used for `key_pos`. Defaults to None. + attn_mask (Tensor): ByteTensor mask with shape [num_queries, + num_keys]. Same in `nn.MultiheadAttention.forward`. + Defaults to None. + key_padding_mask (Tensor): ByteTensor with shape [bs, num_keys]. + Defaults to None. + + Returns: + Tensor: forwarded results with shape + [num_queries, bs, embed_dims] + if self.batch_first is False, else + [bs, num_queries embed_dims]. + """ + + if key is None: + key = query + if value is None: + value = key + if identity is None: + identity = query + if key_pos is None: + if query_pos is not None: + # use query_pos if key_pos is not available + if query_pos.shape == key.shape: + key_pos = query_pos + if query_pos is not None: + query = query + query_pos + if key_pos is not None: + key = key + key_pos + + # Because the dataflow('key', 'query', 'value') of + # ``torch.nn.MultiheadAttention`` is (num_query, batch, + # embed_dims), We should adjust the shape of dataflow from + # batch_first (batch, num_query, embed_dims) to num_query_first + # (num_query ,batch, embed_dims), and recover ``attn_output`` + # from num_query_first to batch_first. + if self.batch_first: + query = query.transpose(0, 1) + key = key.transpose(0, 1) + value = value.transpose(0, 1) + + out = self.attn( + query=query, + key=key, + value=value, + attn_mask=attn_mask, + key_padding_mask=key_padding_mask)[0] + + if self.batch_first: + out = out.transpose(0, 1) + + return identity + self.dropout_layer(self.proj_drop(out)) + + +class ModuleList(BaseModule, nn.ModuleList): + """ModuleList in openmmlab. + + Ensures that all modules in ``ModuleList`` have a different initialization + strategy than the outer model + + Args: + modules (iterable, optional): An iterable of modules to add. + init_cfg (dict, optional): Initialization config dict. + """ + + def __init__(self, + modules: Optional[Iterable] = None, + init_cfg: Optional[dict] = None): + BaseModule.__init__(self, init_cfg) + nn.ModuleList.__init__(self, modules) + + +class Sequential(BaseModule, nn.Sequential): + """Sequential module in openmmlab. + + Ensures that all modules in ``Sequential`` have a different initialization + strategy than the outer model + + Args: + init_cfg (dict, optional): Initialization config dict. + """ + + def __init__(self, *args, init_cfg: Optional[dict] = None): + BaseModule.__init__(self, init_cfg) + nn.Sequential.__init__(self, *args) \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/model/head/__init__.py b/model_without_OpenMMLab/segformer_plusplus/model/head/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..6b9443cbc67c39ffa21778ec0567126ff6376732 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/head/__init__.py @@ -0,0 +1,3 @@ +from .segformer_head import SegformerHead + +__all__ = ['SegformerHead'] diff --git a/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..d2fca2457cfb10d13fa2acbef6936bd148ba58cb Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/__init__.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/segformer_head.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/segformer_head.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..f09b11f284a2805a9f45995965142a5b7e69f7af Binary files /dev/null and b/model_without_OpenMMLab/segformer_plusplus/model/head/__pycache__/segformer_head.cpython-310.pyc differ diff --git a/model_without_OpenMMLab/segformer_plusplus/model/head/segformer_head.py b/model_without_OpenMMLab/segformer_plusplus/model/head/segformer_head.py new file mode 100644 index 0000000000000000000000000000000000000000..9ed2a79d0119b726ad5fa72e3f57cdeae28fe492 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/head/segformer_head.py @@ -0,0 +1,114 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import torch +import torch.nn as nn + +from ...utils import MODELS +from ...utils import resize +from ..base_module import BaseModule +from ...utils.activation import ConvModule + + +@MODELS.register_module() +class SegformerHead(BaseModule): + """The all mlp Head of segformer. + + This head is the implementation of + `Segformer ` _. + + Args: + interpolate_mode: The interpolate mode of MLP head upsample operation. + Default: 'bilinear'. + use_conv_bias_in_convmodules (bool | str): If True, ConvModules will use bias. + If False, they won't. If 'auto', they follow ConvModule's default. + This is added for compatibility with models trained with no conv bias + when followed by BatchNorm, while keeping default local behavior. + """ + + def __init__(self, + in_channels=[32, 64, 160, 256], + in_index=[0, 1, 2, 3], + channels=256, + dropout_ratio=0.1, + out_channels=19, + norm_cfg=None, + align_corners=False, + interpolate_mode='bilinear', + use_conv_bias_in_convmodules: bool | str = 'auto' + ): + super().__init__() + + self.in_channels = in_channels + self.in_index = in_index + self.channels = channels + self.dropout_ratio = dropout_ratio + self.out_channels = out_channels + self.norm_cfg = norm_cfg + self.align_corners = align_corners + self.interpolate_mode = interpolate_mode + self.use_conv_bias_in_convmodules = use_conv_bias_in_convmodules # Speichern des neuen Parameters + + self.act_cfg = dict(type='ReLU') + self.conv_seg = nn.Conv2d(channels, self.out_channels, kernel_size=1) + if dropout_ratio > 0: + self.dropout = nn.Dropout2d(dropout_ratio) + else: + self.dropout = None + + num_inputs = len(self.in_channels) + + conv_module_bias_setting = use_conv_bias_in_convmodules + if use_conv_bias_in_convmodules == 'auto': + pass + elif isinstance(use_conv_bias_in_convmodules, bool): + # Wenn True/False explizit übergeben wird, verwenden wir das + conv_module_bias_setting = use_conv_bias_in_convmodules + else: + raise ValueError("use_conv_bias_in_convmodules must be 'auto', True, or False") + + + self.convs = nn.ModuleList() + for i in range(num_inputs): + self.convs.append( + ConvModule( + in_channels=self.in_channels[i], + out_channels=self.channels, + kernel_size=1, + stride=1, + norm_cfg=self.norm_cfg, + act_cfg=self.act_cfg, + bias=conv_module_bias_setting # Verwende den bestimmten Bias-Wert + )) + + self.fusion_conv = ConvModule( + in_channels=self.channels * num_inputs, + out_channels=self.channels, + kernel_size=1, + norm_cfg=self.norm_cfg, + bias=conv_module_bias_setting # Verwende den bestimmten Bias-Wert + ) + + def cls_seg(self, feat): + """Classify each pixel.""" + if self.dropout is not None: + feat = self.dropout(feat) + output = self.conv_seg(feat) + return output + + def forward(self, inputs): + # Receive 4 stage backbone feature map: 1/4, 1/8, 1/16, 1/32 + outs = [] + for idx in range(len(inputs)): + x = inputs[idx] + conv = self.convs[idx] + outs.append( + resize( + input=conv(x), + size=inputs[0].shape[2:], + mode=self.interpolate_mode, + align_corners=self.align_corners)) + + out = self.fusion_conv(torch.cat(outs, dim=1)) + + out = self.cls_seg(out) + + return out \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/model/utils.py b/model_without_OpenMMLab/segformer_plusplus/model/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..1061888c05f99cbb8bccdb860111bee47c5aa8d9 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/utils.py @@ -0,0 +1,27 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import torch.nn as nn + +from ..utils.registry import Registry + + +MODEL_WRAPPERS = Registry('model_wrapper') + +def is_model_wrapper(model: nn.Module, registry: Registry = MODEL_WRAPPERS): + """Check if a module is a model wrapper. + + Args: + model (nn.Module): The model to be checked. + registry (Registry): The parent registry to search for model wrappers. + + Returns: + bool: True if the input model is a model wrapper. + """ + module_wrappers = tuple(registry.module_dict.values()) + if isinstance(model, module_wrappers): + return True + + if not registry.children: + return False + + return any( + is_model_wrapper(model, child) for child in registry.children.values()) diff --git a/model_without_OpenMMLab/segformer_plusplus/model/weight_init.py b/model_without_OpenMMLab/segformer_plusplus/model/weight_init.py new file mode 100644 index 0000000000000000000000000000000000000000..e1552a14f34e6a85cf33d51908fddec8a3b7ff19 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/model/weight_init.py @@ -0,0 +1,413 @@ + +import copy +import math +import warnings +import inspect +from typing import Any, Optional, Union +import torch +import torch.nn as nn +from torch import Tensor + +from ..configs.config.config import Config, ConfigDict +from ..utils.registry import Registry +from ..utils.manager import ManagerMixin + + +WEIGHT_INITIALIZERS = Registry('weight initializer') + +@WEIGHT_INITIALIZERS.register_module(name='Pretrained') +class PretrainedInit: + """Initialize module by loading a pretrained model. + + Args: + checkpoint (str): the checkpoint file of the pretrained model should + be load. + prefix (str, optional): the prefix of a sub-module in the pretrained + model. it is for loading a part of the pretrained model to + initialize. For example, if we would like to only load the + backbone of a detector model, we can set ``prefix='backbone.'``. + Defaults to None. + map_location (str): map tensors into proper locations. Defaults to cpu. + """ + + def __init__(self, checkpoint, prefix=None, map_location='cpu'): + self.checkpoint = checkpoint + self.prefix = prefix + self.map_location = map_location + + def __call__(self, module): + from mmengine.runner.checkpoint import (_load_checkpoint_with_prefix, + load_checkpoint, + load_state_dict) + if self.prefix is None: + load_checkpoint( + module, + self.checkpoint, + map_location=self.map_location, + strict=False, + logger='current') + else: + state_dict = _load_checkpoint_with_prefix( + self.prefix, self.checkpoint, map_location=self.map_location) + load_state_dict(module, state_dict, strict=False, logger='current') + + if hasattr(module, '_params_init_info'): + update_init_info(module, init_info=self._get_init_info()) + + def _get_init_info(self): + info = f'{self.__class__.__name__}: load from {self.checkpoint}' + return info + + +def update_init_info(module, init_info): + """Update the `_params_init_info` in the module if the value of parameters + are changed. + + Args: + module (obj:`nn.Module`): The module of PyTorch with a user-defined + attribute `_params_init_info` which records the initialization + information. + init_info (str): The string that describes the initialization. + """ + assert hasattr( + module, + '_params_init_info'), f'Can not find `_params_init_info` in {module}' + for name, param in module.named_parameters(): + + assert param in module._params_init_info, ( + f'Find a new :obj:`Parameter` ' + f'named `{name}` during executing the ' + f'`init_weights` of ' + f'`{module.__class__.__name__}`. ' + f'Please do not add or ' + f'replace parameters during executing ' + f'the `init_weights`. ') + + # The parameter has been changed during executing the + # `init_weights` of module + mean_value = param.data.mean().cpu() + if module._params_init_info[param]['tmp_mean_value'] != mean_value: + module._params_init_info[param]['init_info'] = init_info + module._params_init_info[param]['tmp_mean_value'] = mean_value + + +def initialize(module, init_cfg): + r"""Initialize a module. + + Args: + module (``torch.nn.Module``): the module will be initialized. + init_cfg (dict | list[dict]): initialization configuration dict to + define initializer. OpenMMLab has implemented 6 initializers + including ``Constant``, ``Xavier``, ``Normal``, ``Uniform``, + ``Kaiming``, and ``Pretrained``. + + Example: + >>> module = nn.Linear(2, 3, bias=True) + >>> init_cfg = dict(type='Constant', layer='Linear', val =1 , bias =2) + >>> initialize(module, init_cfg) + >>> module = nn.Sequential(nn.Conv1d(3, 1, 3), nn.Linear(1,2)) + >>> # define key ``'layer'`` for initializing layer with different + >>> # configuration + >>> init_cfg = [dict(type='Constant', layer='Conv1d', val=1), + dict(type='Constant', layer='Linear', val=2)] + >>> initialize(module, init_cfg) + >>> # define key``'override'`` to initialize some specific part in + >>> # module + >>> class FooNet(nn.Module): + >>> def __init__(self): + >>> super().__init__() + >>> self.feat = nn.Conv2d(3, 16, 3) + >>> self.reg = nn.Conv2d(16, 10, 3) + >>> self.cls = nn.Conv2d(16, 5, 3) + >>> model = FooNet() + >>> init_cfg = dict(type='Constant', val=1, bias=2, layer='Conv2d', + >>> override=dict(type='Constant', name='reg', val=3, bias=4)) + >>> initialize(model, init_cfg) + >>> model = ResNet(depth=50) + >>> # Initialize weights with the pretrained model. + >>> init_cfg = dict(type='Pretrained', + checkpoint='torchvision://resnet50') + >>> initialize(model, init_cfg) + >>> # Initialize weights of a sub-module with the specific part of + >>> # a pretrained model by using "prefix". + >>> url = 'http://download.openmmlab.com/mmdetection/v2.0/retinanet/'\ + >>> 'retinanet_r50_fpn_1x_coco/'\ + >>> 'retinanet_r50_fpn_1x_coco_20200130-c2398f9e.pth' + >>> init_cfg = dict(type='Pretrained', + checkpoint=url, prefix='backbone.') + """ + if not isinstance(init_cfg, (dict, list)): + raise TypeError(f'init_cfg must be a dict or a list of dict, \ + but got {type(init_cfg)}') + + if isinstance(init_cfg, dict): + init_cfg = [init_cfg] + + for cfg in init_cfg: + # should deeply copy the original config because cfg may be used by + # other modules, e.g., one init_cfg shared by multiple bottleneck + # blocks, the expected cfg will be changed after pop and will change + # the initialization behavior of other modules + cp_cfg = copy.deepcopy(cfg) + override = cp_cfg.pop('override', None) + _initialize(module, cp_cfg) + + if override is not None: + cp_cfg.pop('layer', None) + _initialize_override(module, override, cp_cfg) + else: + # All attributes in module have same initialization. + pass + + +def _initialize(module, cfg, wholemodule=False): + func = build_from_cfg(cfg, WEIGHT_INITIALIZERS) + # wholemodule flag is for override mode, there is no layer key in override + # and initializer will give init values for the whole module with the name + # in override. + func.wholemodule = wholemodule + func(module) + + +def _initialize_override(module, override, cfg): + if not isinstance(override, (dict, list)): + raise TypeError(f'override must be a dict or a list of dict, \ + but got {type(override)}') + + override = [override] if isinstance(override, dict) else override + + for override_ in override: + + cp_override = copy.deepcopy(override_) + name = cp_override.pop('name', None) + if name is None: + raise ValueError('`override` must contain the key "name",' + f'but got {cp_override}') + # if override only has name key, it means use args in init_cfg + if not cp_override: + cp_override.update(cfg) + # if override has name key and other args except type key, it will + # raise error + elif 'type' not in cp_override.keys(): + raise ValueError( + f'`override` need "type" key, but got {cp_override}') + + if hasattr(module, name): + _initialize(getattr(module, name), cp_override, wholemodule=True) + else: + raise RuntimeError(f'module did not have attribute {name}, ' + f'but init_cfg is {cp_override}.') + + +def build_from_cfg( + cfg: Union[dict, ConfigDict, Config], + registry: Registry, + default_args: Optional[Union[dict, ConfigDict, Config]] = None) -> Any: + """Build a module from config dict when it is a class configuration, or + call a function from config dict when it is a function configuration. + + If the global variable default scope (:obj:`DefaultScope`) exists, + :meth:`build` will firstly get the responding registry and then call + its own :meth:`build`. + + At least one of the ``cfg`` and ``default_args`` contains the key "type", + which should be either str or class. If they all contain it, the key + in ``cfg`` will be used because ``cfg`` has a high priority than + ``default_args`` that means if a key exists in both of them, the value of + the key will be ``cfg[key]``. They will be merged first and the key "type" + will be popped up and the remaining keys will be used as initialization + arguments. + + Examples: + >>> from mmengine import Registry, build_from_cfg + >>> MODELS = Registry('models') + >>> @MODELS.register_module() + >>> class ResNet: + >>> def __init__(self, depth, stages=4): + >>> self.depth = depth + >>> self.stages = stages + >>> cfg = dict(type='ResNet', depth=50) + >>> model = build_from_cfg(cfg, MODELS) + >>> # Returns an instantiated object + >>> @MODELS.register_module() + >>> def resnet50(): + >>> pass + >>> resnet = build_from_cfg(dict(type='resnet50'), MODELS) + >>> # Return a result of the calling function + + Args: + cfg (dict or ConfigDict or Config): Config dict. It should at least + contain the key "type". + registry (:obj:`Registry`): The registry to search the type from. + default_args (dict or ConfigDict or Config, optional): Default + initialization arguments. Defaults to None. + + Returns: + object: The constructed object. + """ + if not isinstance(cfg, (dict, ConfigDict, Config)): + raise TypeError( + f'cfg should be a dict, ConfigDict or Config, but got {type(cfg)}') + + if 'type' not in cfg: + if default_args is None or 'type' not in default_args: + raise KeyError( + '`cfg` or `default_args` must contain the key "type", ' + f'but got {cfg}\n{default_args}') + + if not isinstance(registry, Registry): + raise TypeError('registry must be a mmengine.Registry object, ' + f'but got {type(registry)}') + + if not (isinstance(default_args, + (dict, ConfigDict, Config)) or default_args is None): + raise TypeError( + 'default_args should be a dict, ConfigDict, Config or None, ' + f'but got {type(default_args)}') + + args = cfg.copy() + if default_args is not None: + for name, value in default_args.items(): + args.setdefault(name, value) + + # Instance should be built under target scope, if `_scope_` is defined + # in cfg, current default scope should switch to specified scope + # temporarily. + scope = args.pop('_scope_', None) + with registry.switch_scope_and_registry(scope) as registry: + obj_type = args.pop('type') + if isinstance(obj_type, str): + obj_cls = registry.get(obj_type) + if obj_cls is None: + raise KeyError( + f'{obj_type} is not in the {registry.scope}::{registry.name} registry. ' # noqa: E501 + f'Please check whether the value of `{obj_type}` is ' + 'correct or it was registered as expected. More details ' + 'can be found at ' + 'https://mmengine.readthedocs.io/en/latest/advanced_tutorials/config.html#import-the-custom-module' # noqa: E501 + ) + # this will include classes, functions, partial functions and more + elif callable(obj_type): + obj_cls = obj_type + else: + raise TypeError( + f'type must be a str or valid type, but got {type(obj_type)}') + + # If `obj_cls` inherits from `ManagerMixin`, it should be + # instantiated by `ManagerMixin.get_instance` to ensure that it + # can be accessed globally. + if inspect.isclass(obj_cls) and \ + issubclass(obj_cls, ManagerMixin): # type: ignore + obj = obj_cls.get_instance(**args) # type: ignore + else: + obj = obj_cls(**args) # type: ignore + return obj + + +def constant_init(module, val, bias=0): + if hasattr(module, 'weight') and module.weight is not None: + nn.init.constant_(module.weight, val) + if hasattr(module, 'bias') and module.bias is not None: + nn.init.constant_(module.bias, bias) + + +def normal_init(module, mean=0, std=1, bias=0): + if hasattr(module, 'weight') and module.weight is not None: + nn.init.normal_(module.weight, mean, std) + if hasattr(module, 'bias') and module.bias is not None: + nn.init.constant_(module.bias, bias) + + +def trunc_normal_init(module: nn.Module, + mean: float = 0, + std: float = 1, + a: float = -2, + b: float = 2, + bias: float = 0) -> None: + if hasattr(module, 'weight') and module.weight is not None: + trunc_normal_(module.weight, mean, std, a, b) # type: ignore + if hasattr(module, 'bias') and module.bias is not None: + nn.init.constant_(module.bias, bias) # type: ignore + + +def kaiming_init(module, + a=0, + mode='fan_out', + nonlinearity='relu', + bias=0, + distribution='normal'): + assert distribution in ['uniform', 'normal'] + if hasattr(module, 'weight') and module.weight is not None: + if distribution == 'uniform': + nn.init.kaiming_uniform_( + module.weight, a=a, mode=mode, nonlinearity=nonlinearity) + else: + nn.init.kaiming_normal_( + module.weight, a=a, mode=mode, nonlinearity=nonlinearity) + if hasattr(module, 'bias') and module.bias is not None: + nn.init.constant_(module.bias, bias) + + +def trunc_normal_(tensor: Tensor, + mean: float = 0., + std: float = 1., + a: float = -2., + b: float = 2.) -> Tensor: + r"""Fills the input Tensor with values drawn from a truncated normal + distribution. The values are effectively drawn from the normal distribution + :math:`\mathcal{N}(\text{mean}, \text{std}^2)` with values outside + :math:`[a, b]` redrawn until they are within the bounds. The method used + for generating the random values works best when :math:`a \leq \text{mean} + \leq b`. + + Modified from + https://github.com/pytorch/pytorch/blob/master/torch/nn/init.py + + Args: + tensor (``torch.Tensor``): an n-dimensional `torch.Tensor`. + mean (float): the mean of the normal distribution. + std (float): the standard deviation of the normal distribution. + a (float): the minimum cutoff value. + b (float): the maximum cutoff value. + """ + return _no_grad_trunc_normal_(tensor, mean, std, a, b) + + +def _no_grad_trunc_normal_(tensor: Tensor, mean: float, std: float, a: float, + b: float) -> Tensor: + # Method based on + # https://people.sc.fsu.edu/~jburkardt/presentations/truncated_normal.pdf + # Modified from + # https://github.com/pytorch/pytorch/blob/master/torch/nn/init.py + def norm_cdf(x): + # Computes standard normal cumulative distribution function + return (1. + math.erf(x / math.sqrt(2.))) / 2. + + if (mean < a - 2 * std) or (mean > b + 2 * std): + warnings.warn( + 'mean is more than 2 std from [a, b] in nn.init.trunc_normal_. ' + 'The distribution of values may be incorrect.', + stacklevel=2) + + with torch.no_grad(): + # Values are generated by using a truncated uniform distribution and + # then using the inverse CDF for the normal distribution. + # Get upper and lower cdf values + lower = norm_cdf((a - mean) / std) + upper = norm_cdf((b - mean) / std) + + # Uniformly fill tensor with values from [lower, upper], then translate + # to [2lower-1, 2upper-1]. + tensor.uniform_(2 * lower - 1, 2 * upper - 1) + + # Use inverse cdf transform for normal distribution to get truncated + # standard normal + tensor.erfinv_() + + # Transform to proper mean, std + tensor.mul_(std * math.sqrt(2.)) + tensor.add_(mean) + + # Clamp to ensure it's in the proper range + tensor.clamp_(min=a, max=b) + return tensor \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/random_benchmark.py b/model_without_OpenMMLab/segformer_plusplus/random_benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..fd70d19bcab662f256a8144bba4a69493d73ce56 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/random_benchmark.py @@ -0,0 +1,61 @@ +from typing import Union, List, Tuple + +import numpy as np +import torch + +from .utils import benchmark + +device = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu') + + +def random_benchmark( + model: torch.nn.Module, + batch_size: Union[int, List[int]] = 1, + image_size: Union[Tuple[int], List[Tuple[int]]] = (3, 1024, 1024), +): + """ + Calculate the FPS of a given model using randomly generated tensors. + + Args: + model: instance of a model (e.g. SegFormer) + batch_size: the batch size(s) at which to calculate the FPS (e.g. 1 or [1, 2, 4]) + image_size: the size of the images to use (e.g. (3, 1024, 1024)) + + Returns: the FPS values calculated for all image sizes and batch sizes in the form of a dictionary + + """ + if isinstance(batch_size, int): + batch_size = [batch_size] + if isinstance(image_size, tuple): + image_size = [image_size] + + values = {} + throughput_values = [] + + for i in image_size: + # fill with fps for each batch size + fps = [] + for b in batch_size: + for _ in range(4): + # Baseline benchmark + if i[1] >= 1024: + r = 16 + else: + r = 32 + baseline_throughput = benchmark( + model.to(device), + device=device, + verbose=True, + runs=r, + batch_size=b, + input_size=i + ) + throughput_values.append(baseline_throughput) + throughput_values = np.asarray(throughput_values) + throughput = np.around(np.mean(throughput_values), decimals=2) + print('Im_size:', i, 'Batch_size:', b, 'Mean:', throughput, 'Std:', + np.around(np.std(throughput_values), decimals=2)) + throughput_values = [] + fps.append({b: throughput}) + values[i] = fps + return values diff --git a/model_without_OpenMMLab/segformer_plusplus/start_cityscape_benchmark.py b/model_without_OpenMMLab/segformer_plusplus/start_cityscape_benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..d45283c85145ea0344547b1c7dc23a33d5ee0c9a --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/start_cityscape_benchmark.py @@ -0,0 +1,53 @@ +import os +import torch +import numpy as np +import argparse + +from .build_model import create_model +from .cityscape_benchmark import cityscape_benchmark + +parser = argparse.ArgumentParser(description="Segformer Benchmarking Script") +parser.add_argument('--backbone', type=str, default='b5', choices=['b0', 'b1', 'b2', 'b3', 'b4', 'b5'], help='Model backbone version') +parser.add_argument('--head', type=str, default='bsm_hq', choices=['bsm_hq', 'bsm_fast', 'n2d_2x2'], help='Model head type') +parser.add_argument('--checkpoint', type=str, default=None, help='Path to .pth checkpoint file (optional)') +args = parser.parse_args() + +model = create_model(args.backbone, args.head, pretrained=True) + +if args.checkpoint: + checkpoint_path = os.path.expanduser(args.checkpoint) + print(f"Loading checkpoint: {checkpoint_path}") + checkpoint = torch.load(checkpoint_path) + model.load_state_dict(checkpoint) +else: + print("No checkpoint provided – using model as initialized.") + +cwd = os.getcwd() + +image_path = os.path.join(cwd, 'segformer_plusplus', 'cityscape', 'berlin_000543_000019_leftImg8bit.png') +result = cityscape_benchmark(model, image_path) + +reference_txt_path = os.path.join(cwd, 'segformer_plusplus', 'cityscapes_prediction_output__reference_b05_bsm_hq_checkpoint.txt') +generated_txt_path = os.path.join(cwd, 'segformer_plusplus', 'cityscapes_prediction_output.txt') + +if os.path.exists(reference_txt_path) and os.path.exists(generated_txt_path): + ref_arr = np.loadtxt(reference_txt_path, dtype=int) + gen_arr = np.loadtxt(generated_txt_path, dtype=int) + + if ref_arr.shape != gen_arr.shape: + print(f"Files have different shapes: {ref_arr.shape} vs. {gen_arr.shape}") + else: + total_elements = ref_arr.size + equal_elements = np.sum(ref_arr == gen_arr) + similarity = equal_elements / total_elements + + threshold = 0.999 + if similarity >= threshold: + print(f"Outputs are {similarity*100:.4f}% identical (>= {threshold*100}%).") + else: + print(f"Outputs differ by {100 - similarity*100:.4f}%.") +else: + if not os.path.exists(reference_txt_path): + print(f"Reference file not found: {reference_txt_path}") + if not os.path.exists(generated_txt_path): + print(f"Generated output file not found: {generated_txt_path}") diff --git a/model_without_OpenMMLab/segformer_plusplus/start_random_benchmark.py b/model_without_OpenMMLab/segformer_plusplus/start_random_benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..d676a5931eb208ffdcfe6f92d87296832af4c163 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/start_random_benchmark.py @@ -0,0 +1,5 @@ +from .build_model import create_model +from .random_benchmark import random_benchmark + +model = create_model('b5', 'bsm_hq', pretrained=True) +v = random_benchmark(model) \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/__init__.py b/model_without_OpenMMLab/segformer_plusplus/utils/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..5740778d09c3bcee73dfb66226ebd81176649069 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/__init__.py @@ -0,0 +1,15 @@ +# Copyright (c) OpenMMLab. All rights reserved. +from .embed import PatchEmbed +from .shape_convert import nchw_to_nlc, nlc_to_nchw +from .wrappers import resize, Conv2d +from .tome_presets import tome_presets +from .registry import MODELS +from .imagenet_weights import imagenet_weights +from .benchmark import benchmark +from .activation import build_activation_layer, build_norm_layer, build_dropout +from .version_utils import digit_version + + +__all__ = [ + 'PatchEmbed', 'nchw_to_nlc', 'nlc_to_nchw', 'resize', 'Conv2d', 'tome_presets', 'MODELS', 'imagenet_weights', 'benchmark', 'build_activation_layer', 'build_norm_layer', 'build_dropout', 'digit_version' +] diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/__pycache__/__init__.cpython-310.pyc b/model_without_OpenMMLab/segformer_plusplus/utils/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..b6e520fff5b444810e5a2bc1fc8cc5a2b1185a34 Binary files /dev/null and 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a/model_without_OpenMMLab/segformer_plusplus/utils/activation.py b/model_without_OpenMMLab/segformer_plusplus/utils/activation.py new file mode 100644 index 0000000000000000000000000000000000000000..0d0f5a937aa04c3840cf4ee2bf95c700272315dc --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/activation.py @@ -0,0 +1,431 @@ +import warnings +from typing import Dict, Tuple, Union, Any, Optional +import inspect +import torch.nn as nn +import torch +from torch.nn.modules.batchnorm import _BatchNorm +from torch.nn.modules.instancenorm import _InstanceNorm + +from ..model.weight_init import constant_init, kaiming_init +from ..utils.registry import MODELS +from .build_functions import SyncBatchNorm + + +TORCH_VERSION = torch.__version__ + +# register norm-layers +MODELS.register_module('BN', module=nn.BatchNorm2d) +MODELS.register_module('BN1d', module=nn.BatchNorm1d) +MODELS.register_module('BN2d', module=nn.BatchNorm2d) +MODELS.register_module('BN3d', module=nn.BatchNorm3d) +MODELS.register_module('SyncBN', module=SyncBatchNorm) +MODELS.register_module('GN', module=nn.GroupNorm) +MODELS.register_module('LN', module=nn.LayerNorm) +MODELS.register_module('IN', module=nn.InstanceNorm2d) +MODELS.register_module('IN1d', module=nn.InstanceNorm1d) +MODELS.register_module('IN2d', module=nn.InstanceNorm2d) +MODELS.register_module('IN3d', module=nn.InstanceNorm3d) +# register conv-layers +MODELS.register_module('Conv1d', module=nn.Conv1d) +MODELS.register_module('Conv2d', module=nn.Conv2d) +MODELS.register_module('Conv3d', module=nn.Conv3d) +MODELS.register_module('Conv', module=nn.Conv2d) +# register activation-functions +MODELS.register_module('GELU', module=nn.GELU) +MODELS.register_module('ReLU', module=nn.ReLU) + +def build_activation_layer(cfg: Dict) -> nn.Module: + """Build activation layer. + + Args: + cfg (dict): The activation layer config, which should contain: + + - type (str): Layer type. + - layer args: Args needed to instantiate an activation layer. + + Returns: + nn.Module: Created activation layer. + """ + return MODELS.build(cfg) + + +def build_norm_layer(cfg: Dict, + num_features: int, + postfix: Union[int, str] = '') -> Tuple[str, nn.Module]: + """Build normalization layer. + + Args: + cfg (dict): The norm layer config, which should contain: + + - type (str): Layer type. + - layer args: Args needed to instantiate a norm layer. + - requires_grad (bool, optional): Whether stop gradient updates. + num_features (int): Number of input channels. + postfix (int | str): The postfix to be appended into norm abbreviation + to create named layer. + + Returns: + tuple[str, nn.Module]: The first element is the layer name consisting + of abbreviation and postfix, e.g., bn1, gn. The second element is the + created norm layer. + """ + if not isinstance(cfg, dict): + raise TypeError('cfg must be a dict') + if 'type' not in cfg: + raise KeyError('the cfg dict must contain the key "type"') + cfg_ = cfg.copy() + + layer_type = cfg_.pop('type') + + # Switch registry to the target scope. If `norm_layer` cannot be found + # in the registry, fallback to search `norm_layer` in the + # mmengine.MODELS. + with MODELS.switch_scope_and_registry(None) as registry: + norm_layer = registry.get(layer_type) + if norm_layer is None: + raise KeyError(f'Cannot find {norm_layer} in registry under scope ' + f'name {registry.scope}') + abbr = infer_abbr(norm_layer) + + assert isinstance(postfix, (int, str)) + name = abbr + str(postfix) + + requires_grad = cfg_.pop('requires_grad', True) + cfg_.setdefault('eps', 1e-5) + if layer_type != 'GN': + layer = norm_layer(num_features, **cfg_) + if layer_type == 'SyncBN' and hasattr(layer, '_specify_ddp_gpu_num'): + layer._specify_ddp_gpu_num(1) + else: + assert 'num_groups' in cfg_ + layer = norm_layer(num_channels=num_features, **cfg_) + + for param in layer.parameters(): + param.requires_grad = requires_grad + + return name, layer + + +def infer_abbr(class_type): + """Infer abbreviation from the class name. + + When we build a norm layer with `build_norm_layer()`, we want to preserve + the norm type in variable names, e.g, self.bn1, self.gn. This method will + infer the abbreviation to map class types to abbreviations. + + Rule 1: If the class has the property "_abbr_", return the property. + Rule 2: If the parent class is _BatchNorm, GroupNorm, LayerNorm or + InstanceNorm, the abbreviation of this layer will be "bn", "gn", "ln" and + "in" respectively. + Rule 3: If the class name contains "batch", "group", "layer" or "instance", + the abbreviation of this layer will be "bn", "gn", "ln" and "in" + respectively. + Rule 4: Otherwise, the abbreviation falls back to "norm". + + Args: + class_type (type): The norm layer type. + + Returns: + str: The inferred abbreviation. + """ + if not inspect.isclass(class_type): + raise TypeError( + f'class_type must be a type, but got {type(class_type)}') + if hasattr(class_type, '_abbr_'): + return class_type._abbr_ + if issubclass(class_type, _InstanceNorm): # IN is a subclass of BN + return 'in' + elif issubclass(class_type, _BatchNorm): + return 'bn' + elif issubclass(class_type, nn.GroupNorm): + return 'gn' + elif issubclass(class_type, nn.LayerNorm): + return 'ln' + else: + class_name = class_type.__name__.lower() + if 'batch' in class_name: + return 'bn' + elif 'group' in class_name: + return 'gn' + elif 'layer' in class_name: + return 'ln' + elif 'instance' in class_name: + return 'in' + else: + return 'norm_layer' + + +def build_dropout(cfg: Dict, default_args: Optional[Dict] = None) -> Any: + """Builder for drop out layers.""" + return MODELS.build(cfg, default_args=default_args) + + +def build_conv_layer(cfg: Optional[Dict], *args, **kwargs) -> nn.Module: + """Build convolution layer. + + Args: + cfg (None or dict): The conv layer config, which should contain: + - type (str): Layer type. + - layer args: Args needed to instantiate an conv layer. + args (argument list): Arguments passed to the `__init__` + method of the corresponding conv layer. + kwargs (keyword arguments): Keyword arguments passed to the `__init__` + method of the corresponding conv layer. + + Returns: + nn.Module: Created conv layer. + """ + if cfg is None: + cfg_ = dict(type='Conv2d') + else: + if not isinstance(cfg, dict): + raise TypeError('cfg must be a dict') + if 'type' not in cfg: + raise KeyError('the cfg dict must contain the key "type"') + cfg_ = cfg.copy() + + layer_type = cfg_.pop('type') + + # Switch registry to the target scope. If `conv_layer` cannot be found + # in the registry, fallback to search `conv_layer` in the + # mmengine.MODELS. + with MODELS.switch_scope_and_registry(None) as registry: + conv_layer = registry.get(layer_type) + if conv_layer is None: + raise KeyError(f'Cannot find {conv_layer} in registry under scope ' + f'name {registry.scope}') + layer = conv_layer(*args, **kwargs, **cfg_) + + return layer + + +def build_padding_layer(cfg: Dict, *args, **kwargs) -> nn.Module: + """Build padding layer. + + Args: + cfg (dict): The padding layer config, which should contain: + - type (str): Layer type. + - layer args: Args needed to instantiate a padding layer. + + Returns: + nn.Module: Created padding layer. + """ + if not isinstance(cfg, dict): + raise TypeError('cfg must be a dict') + if 'type' not in cfg: + raise KeyError('the cfg dict must contain the key "type"') + + cfg_ = cfg.copy() + padding_type = cfg_.pop('type') + + # Switch registry to the target scope. If `padding_layer` cannot be found + # in the registry, fallback to search `padding_layer` in the + # mmengine.MODELS. + with MODELS.switch_scope_and_registry(None) as registry: + padding_layer = registry.get(padding_type) + if padding_layer is None: + raise KeyError(f'Cannot find {padding_layer} in registry under scope ' + f'name {registry.scope}') + layer = padding_layer(*args, **kwargs, **cfg_) + + return layer + + +@MODELS.register_module() +class ConvModule(nn.Module): + """A conv block that bundles conv/norm/activation layers. + + This block simplifies the usage of convolution layers, which are commonly + used with a norm layer (e.g., BatchNorm) and activation layer (e.g., ReLU). + It is based upon three build methods: `build_conv_layer()`, + `build_norm_layer()` and `build_activation_layer()`. + + Besides, we add some additional features in this module. + 1. Automatically set `bias` of the conv layer. + 2. Spectral norm is supported. + 3. More padding modes are supported. Before PyTorch 1.5, nn.Conv2d only + supports zero and circular padding, and we add "reflect" padding mode. + + Args: + in_channels (int): Number of channels in the input feature map. + Same as that in ``nn._ConvNd``. + out_channels (int): Number of channels produced by the convolution. + Same as that in ``nn._ConvNd``. + kernel_size (int | tuple[int]): Size of the convolving kernel. + Same as that in ``nn._ConvNd``. + stride (int | tuple[int]): Stride of the convolution. + Same as that in ``nn._ConvNd``. + padding (int | tuple[int]): Zero-padding added to both sides of + the input. Same as that in ``nn._ConvNd``. + dilation (int | tuple[int]): Spacing between kernel elements. + Same as that in ``nn._ConvNd``. + groups (int): Number of blocked connections from input channels to + output channels. Same as that in ``nn._ConvNd``. + bias (bool | str): If specified as `auto`, it will be decided by the + norm_cfg. Bias will be set as True if `norm_cfg` is None, otherwise + False. Default: "auto". + conv_cfg (dict): Config dict for convolution layer. Default: None, + which means using conv2d. + norm_cfg (dict): Config dict for normalization layer. Default: None. + act_cfg (dict): Config dict for activation layer. + Default: dict(type='ReLU'). + inplace (bool): Whether to use inplace mode for activation. + Default: True. + with_spectral_norm (bool): Whether use spectral norm in conv module. + Default: False. + padding_mode (str): If the `padding_mode` has not been supported by + current `Conv2d` in PyTorch, we will use our own padding layer + instead. Currently, we support ['zeros', 'circular'] with official + implementation and ['reflect'] with our own implementation. + Default: 'zeros'. + order (tuple[str]): The order of conv/norm/activation layers. It is a + sequence of "conv", "norm" and "act". Common examples are + ("conv", "norm", "act") and ("act", "conv", "norm"). + Default: ('conv', 'norm', 'act'). + """ + + _abbr_ = 'conv_block' + + def __init__(self, + in_channels: int, + out_channels: int, + kernel_size: Union[int, Tuple[int, int]], + stride: Union[int, Tuple[int, int]] = 1, + padding: Union[int, Tuple[int, int]] = 0, + dilation: Union[int, Tuple[int, int]] = 1, + groups: int = 1, + bias: Union[bool, str] = 'auto', + conv_cfg: Optional[Dict] = None, + norm_cfg: Optional[Dict] = None, + act_cfg: Optional[Dict] = dict(type='ReLU'), + inplace: bool = True, + with_spectral_norm: bool = False, + padding_mode: str = 'zeros', + order: tuple = ('conv', 'norm', 'act')): + super().__init__() + assert conv_cfg is None or isinstance(conv_cfg, dict) + assert norm_cfg is None or isinstance(norm_cfg, dict) + assert act_cfg is None or isinstance(act_cfg, dict) + official_padding_mode = ['zeros', 'circular'] + self.conv_cfg = conv_cfg + self.norm_cfg = norm_cfg + self.act_cfg = act_cfg + self.inplace = inplace + self.with_spectral_norm = with_spectral_norm + self.with_explicit_padding = padding_mode not in official_padding_mode + self.order = order + assert isinstance(self.order, tuple) and len(self.order) == 3 + assert set(order) == {'conv', 'norm', 'act'} + + self.with_norm = norm_cfg is not None + self.with_activation = act_cfg is not None + # if the conv layer is before a norm layer, bias is unnecessary. + if bias == 'auto': + bias = not self.with_norm + self.with_bias = bias + + if self.with_explicit_padding: + pad_cfg = dict(type=padding_mode) + self.padding_layer = build_padding_layer(pad_cfg, padding) + + # reset padding to 0 for conv module + conv_padding = 0 if self.with_explicit_padding else padding + + # build convolution layer + self.conv = build_conv_layer( + conv_cfg, + in_channels, + out_channels, + kernel_size, + stride=stride, + padding=conv_padding, + dilation=dilation, + groups=groups, + bias=bias) + # export the attributes of self.conv to a higher level for convenience + self.in_channels = self.conv.in_channels + self.out_channels = self.conv.out_channels + self.kernel_size = self.conv.kernel_size + self.stride = self.conv.stride + self.padding = padding + self.dilation = self.conv.dilation + self.transposed = self.conv.transposed + self.output_padding = self.conv.output_padding + self.groups = self.conv.groups + + if self.with_spectral_norm: + self.conv = nn.utils.spectral_norm(self.conv) + + # build normalization layers + if self.with_norm: + # norm layer is after conv layer + if order.index('norm') > order.index('conv'): + norm_channels = out_channels + else: + norm_channels = in_channels + self.norm_name, norm = build_norm_layer( + norm_cfg, norm_channels) # type: ignore + self.add_module(self.norm_name, norm) + if self.with_bias: + if isinstance(norm, (_BatchNorm, _InstanceNorm)): + warnings.warn( + 'Unnecessary conv bias before batch/instance norm') + else: + self.norm_name = None # type: ignore + + # build activation layer + if self.with_activation: + act_cfg_ = act_cfg.copy() # type: ignore + # nn.Tanh has no 'inplace' argument + if act_cfg_['type'] not in [ + 'Tanh', 'PReLU', 'Sigmoid', 'HSigmoid', 'Swish', 'GELU' + ]: + act_cfg_.setdefault('inplace', inplace) + self.activate = build_activation_layer(act_cfg_) + + # Use msra init by default + self.init_weights() + + @property + def norm(self): + if self.norm_name: + return getattr(self, self.norm_name) + else: + return None + + def init_weights(self): + # 1. It is mainly for customized conv layers with their own + # initialization manners by calling their own ``init_weights()``, + # and we do not want ConvModule to override the initialization. + # 2. For customized conv layers without their own initialization + # manners (that is, they don't have their own ``init_weights()``) + # and PyTorch's conv layers, they will be initialized by + # this method with default ``kaiming_init``. + # Note: For PyTorch's conv layers, they will be overwritten by our + # initialization implementation using default ``kaiming_init``. + if not hasattr(self.conv, 'init_weights'): + if self.with_activation and self.act_cfg['type'] == 'LeakyReLU': + nonlinearity = 'leaky_relu' + a = self.act_cfg.get('negative_slope', 0.01) + else: + nonlinearity = 'relu' + a = 0 + kaiming_init(self.conv, a=a, nonlinearity=nonlinearity) + if self.with_norm: + constant_init(self.norm, 1, bias=0) + + def forward(self, + x: torch.Tensor, + activate: bool = True, + norm: bool = True) -> torch.Tensor: + for layer in self.order: + if layer == 'conv': + if self.with_explicit_padding: + x = self.padding_layer(x) + x = self.conv(x) + elif layer == 'norm' and norm and self.with_norm: + x = self.norm(x) + elif layer == 'act' and activate and self.with_activation: + x = self.activate(x) + return x + diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/benchmark.py b/model_without_OpenMMLab/segformer_plusplus/utils/benchmark.py new file mode 100644 index 0000000000000000000000000000000000000000..af104ca83c7e08e17769f8780f478f772f4b53b1 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/benchmark.py @@ -0,0 +1,76 @@ +# Copyright (c) Meta Platforms, Inc. and affiliates. +# All rights reserved. + +# Source: https://github.com/facebookresearch/ToMe/blob/main/tome/utils.py +# -------------------------------------------------------- + +import time +from typing import Tuple +import torch +from tqdm import tqdm + + +def benchmark( + model: torch.nn.Module, + device: torch.device = 0, + input_size: Tuple[int] = (3, 224, 224), + batch_size: int = 64, + runs: int = 40, + throw_out: float = 0.25, + use_fp16: bool = False, + verbose: bool = False, +) -> float: + """ + Benchmark the given model with random inputs at the given batch size. + + Args: + - model: the module to benchmark + - device: the device to use for benchmarking + - input_size: the input size to pass to the model (channels, h, w) + - batch_size: the batch size to use for evaluation + - runs: the number of total runs to do + - throw_out: the percentage of runs to throw out at the start of testing + - use_fp16: whether or not to benchmark with float16 and autocast + - verbose: whether or not to use tqdm to print progress / print throughput at end + + Returns: + - the throughput measured in images / second + """ + + if not isinstance(device, torch.device): + device = torch.device(device) + is_cuda = torch.device(device).type == "cuda" + + model = model.eval().to(device) + input = torch.rand(batch_size, *input_size, device=device) + if use_fp16: + input = input.half() + + warm_up = int(runs * throw_out) + total = 0 + start = time.time() + + with torch.autocast(device.type, enabled=use_fp16): + with torch.no_grad(): + for i in tqdm(range(runs), disable=not verbose, desc="Benchmarking"): + if i == warm_up: + if is_cuda: + torch.cuda.synchronize() + total = 0 + start = time.time() + + model(input) + total += batch_size + + if is_cuda: + torch.cuda.synchronize() + + end = time.time() + elapsed = end - start + + throughput = total / elapsed + + if verbose: + print(f"Throughput: {throughput:.2f} im/s") + + return throughput diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/build_functions.py b/model_without_OpenMMLab/segformer_plusplus/utils/build_functions.py new file mode 100644 index 0000000000000000000000000000000000000000..15fbb01e2d18dff69f00e3e60ab6ef058f0587c0 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/build_functions.py @@ -0,0 +1,133 @@ +from typing import Any, Optional, Union +import inspect +import torch.nn as nn +import torch + +from ..configs.config.config import Config, ConfigDict +from .registry import Registry +from ..utils.manager import ManagerMixin + + +TORCH_VERSION = torch.__version__ + +def build_from_cfg( + cfg: Union[dict, ConfigDict, Config], + registry: Registry, + default_args: Optional[Union[dict, ConfigDict, Config]] = None) -> Any: + """Build a module from config dict when it is a class configuration, or + call a function from config dict when it is a function configuration. + + If the global variable default scope (:obj:`DefaultScope`) exists, + :meth:`build` will firstly get the responding registry and then call + its own :meth:`build`. + + At least one of the ``cfg`` and ``default_args`` contains the key "type", + which should be either str or class. If they all contain it, the key + in ``cfg`` will be used because ``cfg`` has a high priority than + ``default_args`` that means if a key exists in both of them, the value of + the key will be ``cfg[key]``. They will be merged first and the key "type" + will be popped up and the remaining keys will be used as initialization + arguments. + + Args: + cfg (dict or ConfigDict or Config): Config dict. It should at least + contain the key "type". + registry (:obj:`Registry`): The registry to search the type from. + default_args (dict or ConfigDict or Config, optional): Default + initialization arguments. Defaults to None. + + Returns: + object: The constructed object. + """ + + if not isinstance(cfg, (dict, ConfigDict, Config)): + raise TypeError( + f'cfg should be a dict, ConfigDict or Config, but got {type(cfg)}') + + if 'type' not in cfg: + if default_args is None or 'type' not in default_args: + raise KeyError( + '`cfg` or `default_args` must contain the key "type", ' + f'but got {cfg}\n{default_args}') + + if not isinstance(registry, Registry): + raise TypeError('registry must be a mmengine.Registry object, ' + f'but got {type(registry)}') + + if not (isinstance(default_args, + (dict, ConfigDict, Config)) or default_args is None): + raise TypeError( + 'default_args should be a dict, ConfigDict, Config or None, ' + f'but got {type(default_args)}') + + args = cfg.copy() + if default_args is not None: + for name, value in default_args.items(): + args.setdefault(name, value) + + scope = args.pop('_scope_', None) + with registry.switch_scope_and_registry(scope) as registry: + obj_type = args.pop('type') + if isinstance(obj_type, str): + obj_cls = registry.get(obj_type) + if obj_cls is None: + raise KeyError( + f'{obj_type} is not in the {registry.scope}::{registry.name} registry. ' # noqa: E501 + f'Please check whether the value of `{obj_type}` is ' + ) + # this will include classes, functions, partial functions and more + elif callable(obj_type): + obj_cls = obj_type + else: + raise TypeError( + f'type must be a str or valid type, but got {type(obj_type)}') + + # If `obj_cls` inherits from `ManagerMixin`, it should be + # instantiated by `ManagerMixin.get_instance` to ensure that it + # can be accessed globally. + if inspect.isclass(obj_cls) and \ + issubclass(obj_cls, ManagerMixin): # type: ignore + obj = obj_cls.get_instance(**args) # type: ignore + else: + obj = obj_cls(**args) # type: ignore + return obj + + +def build_model_from_cfg( + cfg: Union[dict, ConfigDict, Config], + registry: Registry, + default_args: Optional[Union[dict, 'ConfigDict', 'Config']] = None +) -> 'nn.Module': + """Build a PyTorch model from config dict(s). Different from + ``build_from_cfg``, if cfg is a list, a ``nn.Sequential`` will be built. + + Args: + cfg (dict, list[dict]): The config of modules, which is either a config + dict or a list of config dicts. If cfg is a list, the built + modules will be wrapped with ``nn.Sequential``. + registry (:obj:`Registry`): A registry the module belongs to. + default_args (dict, optional): Default arguments to build the module. + Defaults to None. + + Returns: + nn.Module: A built nn.Module. + """ + from ..model.base_module import Sequential + if isinstance(cfg, list): + modules = [ + build_from_cfg(_cfg, registry, default_args) for _cfg in cfg + ] + return Sequential(*modules) + else: + return build_from_cfg(cfg, registry, default_args) + + +class SyncBatchNorm(torch.nn.SyncBatchNorm): # type: ignore + + def _check_input_dim(self, input): + if TORCH_VERSION == 'parrots': + if input.dim() < 2: + raise ValueError( + f'expected at least 2D input (got {input.dim()}D input)') + else: + super()._check_input_dim(input) \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/embed.py b/model_without_OpenMMLab/segformer_plusplus/utils/embed.py new file mode 100644 index 0000000000000000000000000000000000000000..f067b70290f767862d2aaf063fec1846beec9940 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/embed.py @@ -0,0 +1,217 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import math +from typing import Sequence +from itertools import repeat +import collections.abc +import torch.nn as nn +import torch.nn.functional as F + +from ..model.base_module import BaseModule +from .activation import build_conv_layer, build_norm_layer + + +class AdaptivePadding(nn.Module): + """Applies padding to input (if needed) so that input can get fully covered + by filter you specified. It supports two modes "same" and "corner". The + "same" mode is same with "SAME" padding mode in TensorFlow, pad zero around + input. The "corner" mode would pad zero to bottom right. + + Args: + kernel_size (int | tuple): Size of the kernel: + stride (int | tuple): Stride of the filter. Default: 1: + dilation (int | tuple): Spacing between kernel elements. + Default: 1. + padding (str): Support "same" and "corner", "corner" mode + would pad zero to bottom right, and "same" mode would + pad zero around input. Default: "corner". + Example: + >>> kernel_size = 16 + >>> stride = 16 + >>> dilation = 1 + >>> input = torch.rand(1, 1, 15, 17) + >>> adap_pad = AdaptivePadding( + >>> kernel_size=kernel_size, + >>> stride=stride, + >>> dilation=dilation, + >>> padding="corner") + >>> out = adap_pad(input) + >>> assert (out.shape[2], out.shape[3]) == (16, 32) + >>> input = torch.rand(1, 1, 16, 17) + >>> out = adap_pad(input) + >>> assert (out.shape[2], out.shape[3]) == (16, 32) + """ + + def __init__(self, kernel_size=1, stride=1, dilation=1, padding='corner'): + + super().__init__() + + assert padding in ('same', 'corner') + + kernel_size = to_2tuple(kernel_size) + stride = to_2tuple(stride) + dilation = to_2tuple(dilation) + + self.padding = padding + self.kernel_size = kernel_size + self.stride = stride + self.dilation = dilation + + def get_pad_shape(self, input_shape): + input_h, input_w = input_shape + kernel_h, kernel_w = self.kernel_size + stride_h, stride_w = self.stride + output_h = math.ceil(input_h / stride_h) + output_w = math.ceil(input_w / stride_w) + pad_h = max((output_h - 1) * stride_h + + (kernel_h - 1) * self.dilation[0] + 1 - input_h, 0) + pad_w = max((output_w - 1) * stride_w + + (kernel_w - 1) * self.dilation[1] + 1 - input_w, 0) + return pad_h, pad_w + + def forward(self, x): + pad_h, pad_w = self.get_pad_shape(x.size()[-2:]) + if pad_h > 0 or pad_w > 0: + if self.padding == 'corner': + x = F.pad(x, [0, pad_w, 0, pad_h]) + elif self.padding == 'same': + x = F.pad(x, [ + pad_w // 2, pad_w - pad_w // 2, pad_h // 2, + pad_h - pad_h // 2 + ]) + return x + + +class PatchEmbed(BaseModule): + """Image to Patch Embedding. + + We use a conv layer to implement PatchEmbed. + + Args: + in_channels (int): The num of input channels. Default: 3 + embed_dims (int): The dimensions of embedding. Default: 768 + conv_type (str): The config dict for embedding + conv layer type selection. Default: "Conv2d". + kernel_size (int): The kernel_size of embedding conv. Default: 16. + stride (int, optional): The slide stride of embedding conv. + Default: None (Would be set as `kernel_size`). + padding (int | tuple | string ): The padding length of + embedding conv. When it is a string, it means the mode + of adaptive padding, support "same" and "corner" now. + Default: "corner". + dilation (int): The dilation rate of embedding conv. Default: 1. + bias (bool): Bias of embed conv. Default: True. + norm_cfg (dict, optional): Config dict for normalization layer. + Default: None. + input_size (int | tuple | None): The size of input, which will be + used to calculate the out size. Only work when `dynamic_size` + is False. Default: None. + init_cfg (`mmengine.ConfigDict`, optional): The Config for + initialization. Default: None. + """ + + def __init__(self, + in_channels=3, + embed_dims=768, + conv_type='Conv2d', + kernel_size=16, + stride=None, + padding='corner', + dilation=1, + bias=True, + norm_cfg=None, + input_size=None, + init_cfg=None): + super().__init__(init_cfg=init_cfg) + + self.embed_dims = embed_dims + if stride is None: + stride = kernel_size + + kernel_size = to_2tuple(kernel_size) + stride = to_2tuple(stride) + dilation = to_2tuple(dilation) + + if isinstance(padding, str): + self.adap_padding = AdaptivePadding( + kernel_size=kernel_size, + stride=stride, + dilation=dilation, + padding=padding) + # disable the padding of conv + padding = 0 + else: + self.adap_padding = None + padding = to_2tuple(padding) + + self.projection = build_conv_layer( + dict(type=conv_type), + in_channels=in_channels, + out_channels=embed_dims, + kernel_size=kernel_size, + stride=stride, + padding=padding, + dilation=dilation, + bias=bias) + + if norm_cfg is not None: + self.norm = build_norm_layer(norm_cfg, embed_dims)[1] + else: + self.norm = None + + if input_size: + input_size = to_2tuple(input_size) + # `init_out_size` would be used outside to + # calculate the num_patches + # when `use_abs_pos_embed` outside + self.init_input_size = input_size + if self.adap_padding: + pad_h, pad_w = self.adap_padding.get_pad_shape(input_size) + input_h, input_w = input_size + input_h = input_h + pad_h + input_w = input_w + pad_w + input_size = (input_h, input_w) + + # https://pytorch.org/docs/stable/generated/torch.nn.Conv2d.html + h_out = (input_size[0] + 2 * padding[0] - dilation[0] * + (kernel_size[0] - 1) - 1) // stride[0] + 1 + w_out = (input_size[1] + 2 * padding[1] - dilation[1] * + (kernel_size[1] - 1) - 1) // stride[1] + 1 + self.init_out_size = (h_out, w_out) + else: + self.init_input_size = None + self.init_out_size = None + + def forward(self, x): + """ + Args: + x (Tensor): Has shape (B, C, H, W). In most case, C is 3. + + Returns: + tuple: Contains merged results and its spatial shape. + + - x (Tensor): Has shape (B, out_h * out_w, embed_dims) + - out_size (tuple[int]): Spatial shape of x, arrange as + (out_h, out_w). + """ + + if self.adap_padding: + x = self.adap_padding(x) + + x = self.projection(x) + out_size = (x.shape[2], x.shape[3]) + x = x.flatten(2).transpose(1, 2) + if self.norm is not None: + x = self.norm(x) + return x, out_size + +# From PyTorch internals +def _ntuple(n): + + def parse(x): + if isinstance(x, collections.abc.Iterable): + return x + return tuple(repeat(x, n)) + + return parse + +to_2tuple = _ntuple(2) diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/imagenet_weights.py b/model_without_OpenMMLab/segformer_plusplus/utils/imagenet_weights.py new file mode 100644 index 0000000000000000000000000000000000000000..940bfb6ca40835c881c24ffca9f949937771c7b8 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/imagenet_weights.py @@ -0,0 +1,8 @@ +imagenet_weights = { + 'b0': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b0_20220624-7e0fe6dd.pth', + 'b1': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b1_20220624-02e5a6a1.pth', + 'b2': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b2_20220624-66e8bf70.pth', + 'b3': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b3_20220624-13b1141c.pth', + 'b4': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b4_20220624-d588d980.pth', + 'b5': 'https://download.openmmlab.com/mmsegmentation/v0.5/pretrain/segformer/mit_b5_20220624-658746d9.pth' +} \ No newline at end of file diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/manager.py b/model_without_OpenMMLab/segformer_plusplus/utils/manager.py new file mode 100644 index 0000000000000000000000000000000000000000..d3c81e2da77cb803d4027de8fb8b6c7bc9733a45 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/manager.py @@ -0,0 +1,149 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import inspect +import threading +import warnings +from collections import OrderedDict +from typing import Type, TypeVar + +_lock = threading.RLock() +T = TypeVar('T') + + +def _accquire_lock() -> None: + """Acquire the module-level lock for serializing access to shared data. + + This should be released with _release_lock(). + """ + if _lock: + _lock.acquire() + + +def _release_lock() -> None: + """Release the module-level lock acquired by calling _accquire_lock().""" + if _lock: + _lock.release() + + +class ManagerMeta(type): + """The metaclass for global accessible class. + + The subclasses inheriting from ``ManagerMeta`` will manage their + own ``_instance_dict`` and root instances. The constructors of subclasses + must contain the ``name`` argument. + + Examples: + >>> class SubClass1(metaclass=ManagerMeta): + >>> def __init__(self, *args, **kwargs): + >>> pass + AssertionError: .__init__ must have the + name argument. + >>> class SubClass2(metaclass=ManagerMeta): + >>> def __init__(self, name): + >>> pass + >>> # valid format. + """ + + def __init__(cls, *args): + cls._instance_dict = OrderedDict() + params = inspect.getfullargspec(cls) + params_names = params[0] if params[0] else [] + assert 'name' in params_names, f'{cls} must have the `name` argument' + super().__init__(*args) + + +class ManagerMixin(metaclass=ManagerMeta): + """``ManagerMixin`` is the base class for classes that have global access + requirements. + + The subclasses inheriting from ``ManagerMixin`` can get their + global instances. + + Examples: + >>> class GlobalAccessible(ManagerMixin): + >>> def __init__(self, name=''): + >>> super().__init__(name) + >>> + >>> GlobalAccessible.get_instance('name') + >>> instance_1 = GlobalAccessible.get_instance('name') + >>> instance_2 = GlobalAccessible.get_instance('name') + >>> assert id(instance_1) == id(instance_2) + + Args: + name (str): Name of the instance. Defaults to ''. + """ + + def __init__(self, name: str = ''): + assert isinstance(name, str) and name, \ + 'name argument must be an non-empty string.' + self._instance_name = name + + @classmethod + def get_instance(cls: Type[T], name: str, **kwargs) -> T: + """Get subclass instance by name if the name exists. + + If corresponding name instance has not been created, ``get_instance`` + will create an instance, otherwise ``get_instance`` will return the + corresponding instance. + + Examples + >>> instance1 = GlobalAccessible.get_instance('name1') + >>> # Create name1 instance. + >>> instance.instance_name + name1 + >>> instance2 = GlobalAccessible.get_instance('name1') + >>> # Get name1 instance. + >>> assert id(instance1) == id(instance2) + + Args: + name (str): Name of instance. Defaults to ''. + + Returns: + object: Corresponding name instance, the latest instance, or root + instance. + """ + _accquire_lock() + assert isinstance(name, str), \ + f'type of name should be str, but got {type(cls)}' + instance_dict = cls._instance_dict # type: ignore + # Get the instance by name. + if name not in instance_dict: + instance = cls(name=name, **kwargs) # type: ignore + instance_dict[name] = instance # type: ignore + elif kwargs: + warnings.warn( + f'{cls} instance named of {name} has been created, ' + 'the method `get_instance` should not accept any other ' + 'arguments') + # Get latest instantiated instance or root instance. + _release_lock() + return instance_dict[name] + + @classmethod + def get_current_instance(cls): + """Get latest created instance. + + Before calling ``get_current_instance``, The subclass must have called + ``get_instance(xxx)`` at least once. + + Examples + >>> instance = GlobalAccessible.get_current_instance() + AssertionError: At least one of name and current needs to be set + >>> instance = GlobalAccessible.get_instance('name1') + >>> instance.instance_name + name1 + >>> instance = GlobalAccessible.get_current_instance() + >>> instance.instance_name + name1 + + Returns: + object: Latest created instance. + """ + _accquire_lock() + if not cls._instance_dict: + raise RuntimeError( + f'Before calling {cls.__name__}.get_current_instance(), you ' + 'should call get_instance(name=xxx) at least once.') + name = next(iter(reversed(cls._instance_dict))) + _release_lock() + return cls._instance_dict[name] + diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/registry.py b/model_without_OpenMMLab/segformer_plusplus/utils/registry.py new file mode 100644 index 0000000000000000000000000000000000000000..b3340a73eefefcaf87629c0ec0d9e8953388f166 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/registry.py @@ -0,0 +1,6 @@ +from ..Registry.registry import Registry + +MODELS = Registry( + 'models', + locations=['segformer_plusplus.model.backbone', 'segformer_plusplus.model.head'] +) diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/shape_convert.py b/model_without_OpenMMLab/segformer_plusplus/utils/shape_convert.py new file mode 100644 index 0000000000000000000000000000000000000000..e04d7c3b57b18b71a1a0b966a9da8626e173c51c --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/shape_convert.py @@ -0,0 +1,107 @@ +# Copyright (c) OpenMMLab. All rights reserved. +def nlc_to_nchw(x, hw_shape): + """Convert [N, L, C] shape tensor to [N, C, H, W] shape tensor. + + Args: + x (Tensor): The input tensor of shape [N, L, C] before conversion. + hw_shape (Sequence[int]): The height and width of output feature map. + + Returns: + Tensor: The output tensor of shape [N, C, H, W] after conversion. + """ + H, W = hw_shape + assert len(x.shape) == 3 + B, L, C = x.shape + assert L == H * W, 'The seq_len doesn\'t match H, W' + return x.transpose(1, 2).reshape(B, C, H, W) + + +def nchw_to_nlc(x): + """Flatten [N, C, H, W] shape tensor to [N, L, C] shape tensor. + + Args: + x (Tensor): The input tensor of shape [N, C, H, W] before conversion. + + Returns: + Tensor: The output tensor of shape [N, L, C] after conversion. + """ + assert len(x.shape) == 4 + return x.flatten(2).transpose(1, 2).contiguous() + + +def nchw2nlc2nchw(module, x, contiguous=False, **kwargs): + """Flatten [N, C, H, W] shape tensor `x` to [N, L, C] shape tensor. Use the + reshaped tensor as the input of `module`, and the convert the output of + `module`, whose shape is. + + [N, L, C], to [N, C, H, W]. + + Args: + module (Callable): A callable object the takes a tensor + with shape [N, L, C] as input. + x (Tensor): The input tensor of shape [N, C, H, W]. + contiguous: + contiguous (Bool): Whether to make the tensor contiguous + after each shape transform. + + Returns: + Tensor: The output tensor of shape [N, C, H, W]. + + Example: + >>> import torch + >>> import torch.nn as nn + >>> norm = nn.LayerNorm(4) + >>> feature_map = torch.rand(4, 4, 5, 5) + >>> output = nchw2nlc2nchw(norm, feature_map) + """ + B, C, H, W = x.shape + if not contiguous: + x = x.flatten(2).transpose(1, 2) + x = module(x, **kwargs) + x = x.transpose(1, 2).reshape(B, C, H, W) + else: + x = x.flatten(2).transpose(1, 2).contiguous() + x = module(x, **kwargs) + x = x.transpose(1, 2).reshape(B, C, H, W).contiguous() + return x + + +def nlc2nchw2nlc(module, x, hw_shape, contiguous=False, **kwargs): + """Convert [N, L, C] shape tensor `x` to [N, C, H, W] shape tensor. Use the + reshaped tensor as the input of `module`, and convert the output of + `module`, whose shape is. + + [N, C, H, W], to [N, L, C]. + + Args: + module (Callable): A callable object the takes a tensor + with shape [N, C, H, W] as input. + x (Tensor): The input tensor of shape [N, L, C]. + hw_shape: (Sequence[int]): The height and width of the + feature map with shape [N, C, H, W]. + contiguous (Bool): Whether to make the tensor contiguous + after each shape transform. + + Returns: + Tensor: The output tensor of shape [N, L, C]. + + Example: + >>> import torch + >>> import torch.nn as nn + >>> conv = nn.Conv2d(16, 16, 3, 1, 1) + >>> feature_map = torch.rand(4, 25, 16) + >>> output = nlc2nchw2nlc(conv, feature_map, (5, 5)) + """ + H, W = hw_shape + assert len(x.shape) == 3 + B, L, C = x.shape + assert L == H * W, 'The seq_len doesn\'t match H, W' + if not contiguous: + x = x.transpose(1, 2).reshape(B, C, H, W) + x = module(x, **kwargs) + x = x.flatten(2).transpose(1, 2) + else: + x = x.transpose(1, 2).reshape(B, C, H, W).contiguous() + x = module(x, **kwargs) + x = x.flatten(2).transpose(1, 2).contiguous() + return x diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/tome_presets.py b/model_without_OpenMMLab/segformer_plusplus/utils/tome_presets.py new file mode 100644 index 0000000000000000000000000000000000000000..7480b4c538a85f17c146280f5ca4905da2656450 --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/tome_presets.py @@ -0,0 +1,20 @@ +tome_presets = { + 'bsm_hq': [ + dict(q_mode=None, kv_mode='bsm', kv_r=0.6, kv_sx=2, kv_sy=2), + dict(q_mode=None, kv_mode='bsm', kv_r=0.6, kv_sx=2, kv_sy=2), + dict(q_mode='bsm', kv_mode=None, q_r=0.8, q_sx=4, q_sy=4), + dict(q_mode='bsm', kv_mode=None, q_r=0.8, q_sx=4, q_sy=4) + ], + 'bsm_fast': [ + dict(q_mode=None, kv_mode='bsm_r2D', kv_r=0.9, kv_sx=4, kv_sy=4), + dict(q_mode=None, kv_mode='bsm_r2D', kv_r=0.9, kv_sx=4, kv_sy=4), + dict(q_mode='bsm_r2D', kv_mode=None, q_r=0.9, q_sx=4, q_sy=4), + dict(q_mode='bsm_r2D', kv_mode=None, q_r=0.9, q_sx=4, q_sy=4) + ], + 'n2d_2x2': [ + dict(q_mode='neighbor_2D', kv_mode=None, q_s=(2, 2)), + dict(q_mode='neighbor_2D', kv_mode=None, q_s=(2, 2)), + dict(q_mode='neighbor_2D', kv_mode=None, q_s=(2, 2)), + dict(q_mode='neighbor_2D', kv_mode=None, q_s=(2, 2)) + ] +} diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/version_utils.py b/model_without_OpenMMLab/segformer_plusplus/utils/version_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..30f56cbf5cefe7347ef1767ea6ee9ef1f185d7ee --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/version_utils.py @@ -0,0 +1,64 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import os +import subprocess +import warnings + +from packaging.version import parse + + +def digit_version(version_str: str, length: int = 4): + """Convert a version string into a tuple of integers. + + This method is usually used for comparing two versions. For pre-release + versions: alpha < beta < rc. + + Args: + version_str (str): The version string. + length (int): The maximum number of version levels. Defaults to 4. + + Returns: + tuple[int]: The version info in digits (integers). + """ + assert 'parrots' not in version_str + version = parse(version_str) + assert version.release, f'failed to parse version {version_str}' + release = list(version.release) + release = release[:length] + if len(release) < length: + release = release + [0] * (length - len(release)) + if version.is_prerelease: + mapping = {'a': -3, 'b': -2, 'rc': -1} + val = -4 + # version.pre can be None + if version.pre: + if version.pre[0] not in mapping: + warnings.warn(f'unknown prerelease version {version.pre[0]}, ' + 'version checking may go wrong') + else: + val = mapping[version.pre[0]] + release.extend([val, version.pre[-1]]) + else: + release.extend([val, 0]) + + elif version.is_postrelease: + release.extend([1, version.post]) # type: ignore + else: + release.extend([0, 0]) + return tuple(release) + + +def _minimal_ext_cmd(cmd): + # construct minimal environment + env = {} + for k in ['SYSTEMROOT', 'PATH', 'HOME']: + v = os.environ.get(k) + if v is not None: + env[k] = v + # LANGUAGE is used on win32 + env['LANGUAGE'] = 'C' + env['LANG'] = 'C' + env['LC_ALL'] = 'C' + out, err = subprocess.Popen( + cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, + env=env).communicate() + return out diff --git a/model_without_OpenMMLab/segformer_plusplus/utils/wrappers.py b/model_without_OpenMMLab/segformer_plusplus/utils/wrappers.py new file mode 100644 index 0000000000000000000000000000000000000000..1a2c35ef105bcbfed84aaff169a5deb8b1f4bd7f --- /dev/null +++ b/model_without_OpenMMLab/segformer_plusplus/utils/wrappers.py @@ -0,0 +1,109 @@ +# Copyright (c) OpenMMLab. All rights reserved. +import warnings +import torch +import torch.nn as nn +import torch.nn.functional as F + +from .registry import MODELS + + +TORCH_VERSION = torch.__version__ + +def resize(input, + size=None, + scale_factor=None, + mode='nearest', + align_corners=None, + warning=True): + if warning: + if size is not None and align_corners: + input_h, input_w = tuple(int(x) for x in input.shape[2:]) + output_h, output_w = tuple(int(x) for x in size) + if output_h > input_h or output_w > output_h: + if ((output_h > 1 and output_w > 1 and input_h > 1 + and input_w > 1) and (output_h - 1) % (input_h - 1) + and (output_w - 1) % (input_w - 1)): + warnings.warn( + f'When align_corners={align_corners}, ' + 'the output would more aligned if ' + f'input size {(input_h, input_w)} is `x+1` and ' + f'out size {(output_h, output_w)} is `nx+1`') + return F.interpolate(input, size, scale_factor, mode, align_corners) + + +@MODELS.register_module('Conv', force=True) +class Conv2d(nn.Conv2d): + + def forward(self, x: torch.Tensor) -> torch.Tensor: + if x.numel() == 0 and obsolete_torch_version(TORCH_VERSION, (1, 4)): + out_shape = [x.shape[0], self.out_channels] + for i, k, p, s, d in zip(x.shape[-2:], self.kernel_size, + self.padding, self.stride, self.dilation): + o = (i + 2 * p - (d * (k - 1) + 1)) // s + 1 + out_shape.append(o) + empty = NewEmptyTensorOp.apply(x, out_shape) + if self.training: + # produce dummy gradient to avoid DDP warning. + dummy = sum(x.view(-1)[0] for x in self.parameters()) * 0.0 + return empty + dummy + else: + return empty + + return super().forward(x) + + +class NewEmptyTensorOp(torch.autograd.Function): + + @staticmethod + def forward(ctx, x: torch.Tensor, new_shape: tuple) -> torch.Tensor: + ctx.shape = x.shape + return x.new_empty(new_shape) + + @staticmethod + def backward(ctx, grad: torch.Tensor) -> tuple: + shape = ctx.shape + return NewEmptyTensorOp.apply(grad, shape), None + + +def obsolete_torch_version(torch_version, version_threshold) -> bool: + return torch_version == 'parrots' or torch_version <= version_threshold + + +@MODELS.register_module() +class DropPath(nn.Module): + """Drop paths (Stochastic Depth) per sample (when applied in main path of + residual blocks). + + We follow the implementation + https://github.com/rwightman/pytorch-image-models/blob/a2727c1bf78ba0d7b5727f5f95e37fb7f8866b1f/timm/models/layers/drop.py # noqa: E501 + + Args: + drop_prob (float): Probability of the path to be zeroed. Default: 0.1 + """ + + def __init__(self, drop_prob: float = 0.1): + super().__init__() + self.drop_prob = drop_prob + + def forward(self, x: torch.Tensor) -> torch.Tensor: + return drop_path(x, self.drop_prob, self.training) + + +def drop_path(x: torch.Tensor, + drop_prob: float = 0., + training: bool = False) -> torch.Tensor: + """Drop paths (Stochastic Depth) per sample (when applied in main path of + residual blocks). + + We follow the implementation + https://github.com/rwightman/pytorch-image-models/blob/a2727c1bf78ba0d7b5727f5f95e37fb7f8866b1f/timm/models/layers/drop.py # noqa: E501 + """ + if drop_prob == 0. or not training: + return x + keep_prob = 1 - drop_prob + # handle tensors with different dimensions, not just 4D tensors. + shape = (x.shape[0], ) + (1, ) * (x.ndim - 1) + random_tensor = keep_prob + torch.rand( + shape, dtype=x.dtype, device=x.device) + output = x.div(keep_prob) * random_tensor.floor() + return output \ No newline at end of file