Update app.py

app.py

@@ -174,7 +174,7 @@ with gr.Blocks() as demo:
     with gr.Row():
         with gr.Column(scale=1):
             with gr.Row(scale=3):
-                image_path = gr.Image(type="filepath", label="Query Image", value=None)
+                image_path = gr.Image(type="filepath", label="Query Image", value='crack_concrete.jpg')
             with gr.Row(scale=3):
                 normal_img_path = gr.Image(type="filepath", label="Normal Image (optional)", value=None)
             with gr.Row(scale=1):