MLKitFaceDetection Framework Reference

Page Summary

• This document provides global type definitions for face detection functionalities within the ML Kit framework.

• The types define structures and enumerations for facial contours, landmarks, detection callbacks, and modes for classification, performance, landmark detection, and contour detection.

• These type definitions are crucial for developers to understand and interact with the face detection features offered by the framework.

• Developers can utilize these type definitions to customize face detection based on performance, accuracy, and the desired level of detail regarding landmarks and contours.

Type Definitions

The following type definitions are available globally.

• FaceContourType

  The facial contours.

  Declaration

  Swift

  struct FaceContourType : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable

• FaceDetectionCallback

  A block containing an array of faces or nil if there’s an error.

  Declaration

  Swift

  typealias FaceDetectionCallback = ([MLKFace]?, Error?) -> Void

  Parameters

  faces	Array of faces detected in the image or nil if there was an error.
  error	The error or nil.

• FaceDetectorClassificationMode

  @enum FaceDetectorClassificationMode Classification mode for face detection.

  Declaration

  Swift

  struct FaceDetectorClassificationMode : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable

• FaceDetectorPerformanceMode

  @enum FaceDetectorPerformanceMode Performance preference for accuracy or speed of face detection.

  Declaration

  Swift

  struct FaceDetectorPerformanceMode : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable

• FaceDetectorLandmarkMode

  @enum FaceDetectorLandmarkMode Landmark detection mode for face detection.

  Declaration

  Swift

  struct FaceDetectorLandmarkMode : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable

• FaceDetectorContourMode

  @enum FaceDetectorContourMode Contour detection mode for face detection.

  Declaration

  Swift

  struct FaceDetectorContourMode : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable

• FaceLandmarkType

  The facial landmarks.

  Declaration

  Swift

  struct FaceLandmarkType : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable