MediaPipeTasksVision Framework Reference

MPPHandLandmarkerOptions

  @interface 
 MPPHandLandmarkerOptions 
 : 
  MPPTaskOptions 
 
 < 
 NSCopying 
 > 
 

Options for setting up a HandLandmarker .

  • Running mode of the hand landmarker task. Defaults to .image . HandLandmarker can be created with one of the following running modes:

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

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
      MPPRunningMode 
     
     runningMode 
     ; 
     
    
  • An object that confirms to HandLandmarkerLiveStreamDelegate protocol. This object must implement handLandmarker:didFinishDetectionWithResult:timestampInMilliseconds:error: to receive the results of performing asynchronous hand landmark detection on images (i.e, when runningMode = .liveStream ).

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     , 
     weak 
     , 
     nullable 
     ) 
     id 
     < 
      MPPHandLandmarkerLiveStreamDelegate 
     
     > 
     handLandmarkerLiveStreamDelegate 
     ; 
     
    
  • The maximum number of hands that can be detected by the HandLandmarker .

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     NSInteger 
     numHands 
     ; 
     
    
  • The minimum confidence score for the hand detection to be considered successful.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minHandDetectionConfidence 
     ; 
     
    
  • The minimum confidence score of hand presence score in the hand landmark detection.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minHandPresenceConfidence 
     ; 
     
    
  • The minimum confidence score for the hand tracking to be considered successful.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minTrackingConfidence 
     ; 
     
    
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