updated app

app.py

@@ -45,7 +45,7 @@ with gr.Blocks() as demo:
             prediction = gr.Image(type='pil', label='Segmentation Result')
             prob_map = gr.Image(type='pil', label='Probability Map')
     segment_button.click(
-        segment_image, 
+        segment_sidewalk, 
         inputs=[image_input, threshold_slider], 
         outputs=[image_input, prediction, prob_map]
     )