Fixed threshold error

app.py

@@ -11,7 +11,6 @@ client = MongoClient(uri)
 db = client["Face_identification"]
 identities_collection = db["face_identities"]
 model_name="Facenet"
-threshold = findThreshold(model_name , "cosine")
 debug=False
 
 def save_identity(image , name):
@@ -53,6 +52,8 @@ def findThreshold(model_name, distance_metric):
 
     return threshold
 
+threshold = findThreshold(model_name , "cosine")
+
 def predict_image(image):
     if debug: 
       print("1")