Update app.py

app.py

@@ -180,7 +180,7 @@ def detect_watermark(det_im):
 # Gradio app
 with gr.Blocks() as app:
     with gr.Tab("Add Watermark"):
-        cho = gr.Radio(choices=["stegan", "pnginfo"], value="stegan", label="Watermark Method")
+        cho = gr.Radio(choices="stegan", value="stenography", label="Watermark Method")
         with gr.Row():
             with gr.Column():
                 inp_im = gr.Image(label="Input Image", type="filepath")