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Vision · IOS API REFERENCE

FaceObservation.CaptureQuality

struct · iOS 18.0+ · SDK 27.1

struct CaptureQuality

An indicator of the quality of a face capture.

Members (3)

get · iOS 18.0+

description

TypeScript
get description(): string
Swift declaration
var description: String { get }

A textual representation of this instance. Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the `String(describing:)` initializer. This initializer works with any type, and uses the custom `description` property for types that conform to `CustomStringConvertible`: struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "(\(x), \(y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)" The conversion of `p` to a string in the assignment to `s` uses the `Point` type's `description` property.

get · iOS 18.0+

originatingRequestDescriptor

TypeScript
get originatingRequestDescriptor(): (RequestDescriptor) | null
Swift declaration
let originatingRequestDescriptor: RequestDescriptor?

The descriptor of the request that produced the capture quality.

get · iOS 18.0+

score

TypeScript
get score(): number
Swift declaration
let score: Float

A value that indicates the quality of the face capture. The score allows you to compare the quality of the face in terms of its capture attributes: lighting, blur, and prime positioning. Use this value to compare the capture quality of a face against other captures of the same face in a specified set. The value of this property value ranges from `0.0` to `1.0`. Faces with quality closer to `1.0` are better lit, sharper, and more centrally positioned than faces with quality closer to `0.0`.

Skipped declarations

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