Update app.py

app.py

@@ -381,7 +381,7 @@ with gr.Blocks() as demo:
                     value=20
                 )
                 conf_threshold = gr.Slider(
-                    minimum=0.1,
+                    minimum=0.0,
                     maximum=1.0,
                     value=0.2,
                     step=0.05,