Function

VNNormalizedFaceBoundingBoxPointForLandmarkPoint(_:_:_:_:)

Returns the coordinates of a given face landmark point, in bounding box coordinates.

Declaration

func VNNormalizedFaceBoundingBoxPointForLandmarkPoint(_ faceLandmarkPoint: vector_float2, _ faceBoundingBox: CGRect, _ imageWidth: Int, _ imageHeight: Int) -> CGPoint

Parameters

faceLandmarkPoint

The location of the face landmark, as returned from a VNFaceLandmarkRegion2D instance.

faceBoundingBox

The normalized bounding box rect around the face, as obtained from a VNFaceObservation instance.

imageWidth

The width of the image from which the VNFaceObservation instance was generated.

imageHeight

The height of the image from which the VNFaceObservation instance was generated.

Return Value

The input point projected into normalized bounding box coordinates.

See Also

Coordinate Conversion

func VNImagePointForNormalizedPoint(CGPoint, Int, Int) -> CGPoint

Projects a point from normalized coordinate space into image coordinates.

func VNImageRectForNormalizedRect(CGRect, Int, Int) -> CGRect

Projects a rectangle from normalized coordinate space into image coordinates.

func VNNormalizedRectForImageRect(CGRect, Int, Int) -> CGRect

Normalizes a rectangle from image coordinates.

let VNNormalizedIdentityRect: CGRect

The normalized identity rectangle with origin (0,0) and unit length and width.

func VNNormalizedRectIsIdentityRect(CGRect) -> Bool

Returns true if the rectangle has origin (0,0) and unit length and width.

func VNImagePointForFaceLandmarkPoint(vector_float2, CGRect, Int, Int) -> CGPoint

Returns the image coordinates of a given face landmark point.

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