Update app.py

app.py

@@ -163,10 +163,10 @@ print('Loading Finished!')
 def check_input_image(input_image):
     if input_image is None:
         raise gr.Error("No image uploaded!")
-        return None
+        image= None
     else:
         image = Image.open(input_image)
-        return image
+    return image
 
 def preprocess(input_image, do_remove_background):