Update app.py

app.py

@@ -122,6 +122,7 @@ def generate_image(prompt, image):
                     return Image.open(latest_image)
                 finally:
                     delete_image_file(latest_image)
+                    delete_image_file(INPUT_DIR + '/input.png')
             time.sleep(1)
 
         raise TimeoutError("New image was not generated in time")