MediaPipeTasksVision Framework Reference

MPPFaceLandmarkerOptions

  @interface 
 MPPFaceLandmarkerOptions 
 : 
  MPPTaskOptions 
 
 < 
 NSCopying 
 > 
 

Options for setting up a FaceLandmarker .

  • Running mode of the face landmark dection task. Defaults to .image . FaceLandmarker can be created with one of the following running modes:

    1. .image : The mode for performing face detection on single image inputs.
    2. .video : The mode for performing face detection on the decoded frames of a video.
    3. .liveStream : The mode for performing face 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 FaceLandmarkerLiveStreamDelegate protocol. This object must implement faceLandmarker(_:didFinishDetectionWithResult:timestampInMilliseconds:error:) to receive the results of performing asynchronous face landmark detection on images (i.e, when runningMode = .liveStream ).

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     , 
     weak 
     , 
     nullable 
     ) 
     id 
     < 
      MPPFaceLandmarkerLiveStreamDelegate 
     
     > 
     faceLandmarkerLiveStreamDelegate 
     ; 
     
    
  • The maximum number of faces can be detected by the FaceLandmarker. Defaults to 1.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     NSInteger 
     numFaces 
     ; 
     
    
  • The minimum confidence score for the face detection to be considered successful. Defaults to 0.5.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minFaceDetectionConfidence 
     ; 
     
    
  • The minimum confidence score of face presence score in the face landmark detection. Defaults to 0.5.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minFacePresenceConfidence 
     ; 
     
    
  • The minimum confidence score for the face tracking to be considered successful. Defaults to 0.5.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     float 
     minTrackingConfidence 
     ; 
     
    
  • Whether FaceLandmarker outputs face blendshapes classification. Face blendshapes are used for rendering the 3D face model.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     BOOL 
     outputFaceBlendshapes 
     ; 
     
    
  • Whether FaceLandmarker outputs facial transformation_matrix. Facial transformation matrix is used to transform the face landmarks in canonical face to the detected face, so that users can apply face effects on the detected landmarks.

    Declaration

    Objective-C

      @property 
     ( 
     nonatomic 
     ) 
     BOOL 
     outputFacialTransformationMatrixes 
     ; 
     
    
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