Fix: default selection support

app.py

@@ -86,13 +86,18 @@ import gradio as gr
 with gr.Blocks() as interface:
     gr.Markdown("# XAI: Visualize Object Detection of Your Models")
     gr.Markdown("Select a sample image to visualize object detection.")
+    default_sample = "Sample 1"
     with gr.Row():
         sample_selection = gr.Radio(
             choices=list(sample_images.keys()),
             label="Select a Sample Image",
             type="value",
+            value=default_sample,  # Set default selection
+        )
+        sample_display = gr.Image(
+            value=load_sample_image(default_sample),  
+            label="Selected Sample Image",
         )
-        sample_display = gr.Image(label="Selected Sample Image")
     sample_selection.change(
         fn=load_sample_image,
         inputs=sample_selection,
@@ -105,9 +110,11 @@ with gr.Blocks() as interface:
         label="Select Model(s)",
     )
     result_gallery = gr.Gallery(label="Results", elem_id="gallery", rows=2, height=500)
+
     gr.Button("Run").click(
         fn=process_image,
         inputs=[sample_selection, selected_models],
         outputs=result_gallery,
     )
+
 interface.launch()