Update app.py

app.py

@@ -38,6 +38,10 @@ def parse_input(image, sketchpad, state):
 def tabs_select(e: gr.SelectData, _state):
     _state["tab_index"] = e.index
 
+example_img_path = "https://sl.bing.net/i3YznO6vkiW"
+def use_example_img():
+    return example_img_path
+    
 with gr.Blocks() as iface:
     gr.HTML("""<p align="center"><img src="https://cdn-icons-png.flaticon.com/512/5853/5853758.png" style="height: 60px"/><p>""")
     gr.HTML("""<center><font size=8>Image Captioning Demo</center>""")
@@ -54,10 +58,9 @@ with gr.Blocks() as iface:
                     input_sketchpad = gr.Sketchpad(type="pil", label="Sketch", layers=False)
             input_tabs.select(fn=tabs_select, inputs=[state])
 
-            example_img = "https://sl.bing.net/i3YznO6vkiW"
-            example_button = gr.Button("Use example image")
-            def use_example_img(example_img):
-                return example_img
+
+            example_img = gr.Image(value = example_img_path, label="Example image", interactive =True)
+
             
             with gr.Row():
                 with gr.Column():
@@ -69,7 +72,7 @@ with gr.Blocks() as iface:
             fn=parse_input,
             inputs=[input_image, input_sketchpad, state],
             outputs= gr.Textbox(label = "Result")) 
-        example_button.click(use_example_img, input_image)   
+        example_img.click(use_example_img, outputs = input_image)   
 # Launch the interface
 if __name__ == "__main__":
     iface.launch()