changed the operator

Signed-off-by: krishna katyal <krishna.katyal@zilliz.com>

deepface.py

@@ -19,7 +19,7 @@ class DeepfaceFaceEmbedding(NNOperator):
       self.model_name=model_name
   @arg(1, to_image_color('RGB'))
   def __call__(self,img: Image) -> np.ndarray:
-      open_cv_image = np.array(Image) 
+      open_cv_image = np.array(img) 
       # Convert RGB to BGR 
       open_cv_image = open_cv_image[:, :, ::-1].copy() 
       # img.to_ndarray()