Update app.py

app.py

@@ -40,7 +40,7 @@ def load_model(model_repo_id):
 def predict(pilimg,Threshold):
 
     image_np = pil_image_as_numpy_array(pilimg)
-    if type(Threshold) is None:
+    if type(Threshold) is None or Threshold==0:
         Threshold=threshold_d
         
     return predict2(image_np,Threshold),predict3(image_np,Threshold),Threshold