MediaPipeTasksVision Framework Reference

    MPPGestureRecognizerOptions

      @interface 
 MPPGestureRecognizerOptions 
 : 
  MPPTaskOptions 
 
 < 
 NSCopying 
 >

    Options for setting up a GestureRecognizer .

    • Running mode of the gesture recognizer task. Defaults to .video . GestureRecognizer can be created with one of the following running modes:

      1. image : The mode for performing gesture recognition on single image inputs.
      2. video : The mode for performing gesture recognition on the decoded frames of a video.
      3. liveStream : The mode for performing gesture recognition on a live stream of input data, such as from the camera.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 ) 
  MPPRunningMode 
 
 runningMode 
 ;

    • An object that confirms to GestureRecognizerLiveStreamDelegate protocol. This object must implement gestureRecognizer(_:didFinishRecognitionWithResult:timestampInMilliseconds:error:) to receive the results of performing asynchronous gesture recognition on images (i.e, when runningMode = .liveStream ).

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 , 
 weak 
 , 
 nullable 
 ) 
 id 
 < 
  MPPGestureRecognizerLiveStreamDelegate 
 
 > 
 gestureRecognizerLiveStreamDelegate 
 ;

    • Sets the maximum number of hands can be detected by the GestureRecognizer.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 ) 
 NSInteger 
 numHands 
 ;

    • Sets minimum confidence score for the hand detection to be considered successful

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 ) 
 float 
 minHandDetectionConfidence 
 ;

    • Sets minimum confidence score of hand presence score in the hand landmark detection.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 ) 
 float 
 minHandPresenceConfidence 
 ;

    • Sets the minimum confidence score for the hand tracking to be considered successful.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 ) 
 float 
 minTrackingConfidence 
 ;

    • Sets the optional ClassifierOptions controlling the canned gestures classifier, such as score threshold, allow list and deny list of gestures. The categories for canned gesture classifiers are: [“None”, “Closed_Fist”, “Open_Palm”, “Pointing_Up”, “Thumb_Down”, “Thumb_Up”, “Victory”, “ILoveYou”].

      TODO: Note this option is subject to change, after scoring merging calculator is implemented.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 , 
 copy 
 , 
 nullable 
 ) 
  MPPClassifierOptions 
 
 * 
 cannedGesturesClassifierOptions 
 ;

    • Sets the optional ClassifierOptions controlling the custom gestures classifier, such as score threshold, allow list and deny list of gestures.

      TODO: Note this option is subject to change, after scoring merging calculator is implemented.

      Declaration

      Objective-C

        @property 
 ( 
 nonatomic 
 , 
 copy 
 , 
 nullable 
 ) 
  MPPClassifierOptions 
 
 * 
 customGesturesClassifierOptions 
 ;
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