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Vision · IOS API REFERENCE

DetectFaceLandmarksRequest

struct · iOS 18.0+ · SDK 27.1

struct DetectFaceLandmarksRequest

An image analysis request that finds facial features like eyes and mouth in an image. By default, a face landmarks request first locates all faces in the input image, then analyzes each to detect facial features. If you’ve already located all the faces in an image, or want to detect landmarks in only a subset of the faces in the image, set the inputFaceObservations property to an array of ``FaceObservation`` objects representing the faces you want to analyze. You can either use face observations output by a ``DetectFaceRectanglesRequest`` or manually create `FaceObservation` instances with the bounding boxes of the faces you want to analyze.

Members (9)

get · iOS 18.0+

inputFaceObservations

TypeScript
get inputFaceObservations(): (Array<FaceObservation>) | null
Swift declaration
var inputFaceObservations: [FaceObservation]?

An array of `FaceObservation` objects to process as part of the request. The default is nil. When nil, Vision will first perform a `DetectFaceRectanglesRequest` and process all faces detected.

set · iOS 18.0+

inputFaceObservations

TypeScript
set inputFaceObservations(value: (Array<FaceObservation>) | null)
Swift declaration
var inputFaceObservations: [FaceObservation]?

An array of `FaceObservation` objects to process as part of the request. The default is nil. When nil, Vision will first perform a `DetectFaceRectanglesRequest` and process all faces detected.

get · iOS 18.0+

descriptor

TypeScript
get descriptor(): RequestDescriptor
Swift declaration
var descriptor: RequestDescriptor { get }

An enum that identifies the request and request revision.

get · iOS 18.0+

regionOfInterest

TypeScript
get regionOfInterest(): NormalizedRect
Swift declaration
var regionOfInterest: NormalizedRect

The region of the image in which Vision will perform the request. The rectangle is normalized to the dimensions of the processed image. Its origin is specified relative to the image's lower-left corner. By default, the region of interest will be the full image.

set · iOS 18.0+

regionOfInterest

TypeScript
set regionOfInterest(value: NormalizedRect)
Swift declaration
var regionOfInterest: NormalizedRect

The region of the image in which Vision will perform the request. The rectangle is normalized to the dimensions of the processed image. Its origin is specified relative to the image's lower-left corner. By default, the region of interest will be the full image.

method · iOS 18.0+

setComputeDevice

TypeScript
setComputeDevice(computeDevice: (_CoreML_MLComputeDevice) | null, computeStage: ComputeStage): void
Swift declaration
mutating func setComputeDevice(_ computeDevice: MLComputeDevice?, for computeStage: ComputeStage)

Assigns a compute device for a compute stage. If the parameter `computeDevice` is `nil`, the framework removes any explicit compute device assignment and allows the framework to select the device. Configure any compute device for a given compute stage. When performing a request, the system makes a validity check. Use `supportedComputeStageDevices` to get valid compute devices for a request’s compute stages. - Parameters: - `computeDevice: `The compute device to assign to the compute stage. - `computeStage: `The compute stage.

get · iOS 18.0+

supportedRevisions

TypeScript
static get supportedRevisions(): Array<DetectFaceLandmarksRequest_Revision>
Swift declaration
static let supportedRevisions: [DetectFaceLandmarksRequest.Revision]

The collection of currently-supported revisions for `DetectFaceLandmarksRequest`.

get · iOS 18.0+

revision

TypeScript
get revision(): DetectFaceLandmarksRequest_Revision
Swift declaration
let revision: DetectFaceLandmarksRequest.Revision

The request's configured revision.

init · iOS 18.0+

init

TypeScript
static init(revision?: (DetectFaceLandmarksRequest_Revision) | null): DetectFaceLandmarksRequest
Swift declaration
init(_ revision: DetectFaceLandmarksRequest.Revision? = nil)

Skipped declarations

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