upd4

app.py

@@ -121,7 +121,7 @@ def sepia(input_img):
     return fig
 
 demo = gr.Interface(fn=sepia,
-                    inputs=gr.Image(shape=(400, 600)),
+                    inputs=gr.Image(),
                     outputs=['plot'],
                     examples=["sidewalk-1.jpg", "sidewalk-2.jpg", "sidewalk-3.jpg"],
                     allow_flagging='never')