fix

app.py

@@ -316,14 +316,14 @@ with gr.Blocks() as demo:
         fn=None,
         inputs=[image_bef],
         outputs=[],
-        _js="(image_bef) => { initializeEditorBefore(); importBackgroundBefore(image); return []; }",
+        _js="(image_bef) => { initializeEditorBefore(); importBackgroundBefore(image_bef); return []; }",
     )
 
     image_aft.change(
         fn=None,
         inputs=[image_aft],
         outputs=[],
-        _js="(image_aft) => { initializeEditorAfter(); importBackgroundAfter(image); return []; }",
+        _js="(image_aft) => { initializeEditorAfter(); importBackgroundAfter(image_aft); return []; }",
     )