Update helpers.py

helpers.py

@@ -76,6 +76,12 @@ def load_model(
 
     return deepface_model
 
+def findCosineDistance(source_representation, test_representation):
+    a = np.matmul(np.transpose(source_representation), test_representation)
+    b = np.sum(np.multiply(source_representation, source_representation))
+    c = np.sum(np.multiply(test_representation, test_representation))
+    return 1 - (a / (np.sqrt(b) * np.sqrt(c)))
+
 def get_embeddings(model, imgs):
   embeddings = []
   for img in imgs: