Update app.py

app.py

@@ -246,7 +246,7 @@ with gr.Blocks() as demo:
                         scale=3
                     )
                     ex_img = gr.Image(
-                        value=f"img_{i + 1}.png",
+                        value=f"img_{i + 1}.jpg",
                         label="Effect",
                         interactive=False,
                         height=130,