Update app.py

app.py

@@ -190,7 +190,7 @@ with gr.Blocks() as app:
             with gr.Column():
                 out_im = gr.Image(label="Watermarked Image")
 
-        mark_btn.click(choose_encode, inputs=[inp_im, inp_mark, cho], outputs=[out_im, msg_box, file_output])
+        mark_btn.click(choose_encode, inputs=[inp_im, inp_mark], outputs=[out_im, msg_box, file_output])
 
     with gr.Tab("Detect Watermark"):
         with gr.Row():