Update app.py

app.py

@@ -1,12 +1,16 @@
 import gradio as gr
 import numpy as np
 import torch
+from diffusers.utils import load_image, make_image_grid
 from diffusers import (
     StableDiffusionPipeline,
     StableDiffusionControlNetPipeline,
     ControlNetModel
 )
 from peft import PeftModel, LoraConfig
+from controlnet_aux import HEDdetector
+from PIL import Image
+import cv2 as cv
 import os