SaliencyImageObservation

confidence

get confidence(): number

let confidence: Float

The level of confidence normalized to `[0, 1]` where `1` is most confident. The only exception is results coming from `CoreMLRequest`, where confidence values are forwarded as is from relevant CoreML models

description

get description(): string

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.

salientObjects

get salientObjects(): Array<RectangleObservation>

let salientObjects: [RectangleObservation]

A collection of objects describing the distinct areas of the saliency heat map. The objects in this array don't follow any specific ordering. It's up to your app to iterate across the observations and apply desired ordering.

originatingRequestDescriptor

get originatingRequestDescriptor(): (RequestDescriptor) | null

let originatingRequestDescriptor: RequestDescriptor?

The descriptor of the request that produced the observation.

uuid

get uuid(): string

let uuid: UUID

The unique identifier for the observation.

heatMap

get heatMap(): PixelBufferObservation

let heatMap: PixelBufferObservation

A grayscale heat map of important areas across the image. The heat map is a pixel buffer in a one-component floating-point pixel format.

timeRange

get timeRange(): (_CoreMedia_CMTimeRange) | null

let timeRange: CMTimeRange?

The time range of the reported observation. When evaluating a sequence of image buffers, use this property to determine each observation’s start time and duration.

init

static init(observation: VNSaliencyImageObservation): (SaliencyImageObservation) | null

init?(_ observation: VNSaliencyImageObservation)