public FacialEmotionRecognition(Bitmap image)
 {
     _faceRecognition = new FaceRecognition();
     var faceFeatures = _faceRecognition.GetFaceFeatures(image);
     if (faceFeatures != null)
     {
         _facsRecognition = new FacsRecognition(faceFeatures);
     }
 }
 public string GetFaceEmotion(Bitmap image)
 {
     var faceFeatures = _faceRecognition.GetFaceFeatures(image);
     if (faceFeatures != null)
     {
         if (_facsRecognition == null)
         {
             _facsRecognition = new FacsRecognition(faceFeatures);
             if (_facsRecognition == null)
             {
                 return string.Empty;
             }
         }
         var actionUnits = _facsRecognition.SetActionUnits(faceFeatures);
         var emotionRecognition = new EmotionRecognition(actionUnits);
         return emotionRecognition.GetEmotion();
     }
     return string.Empty;
 }