LCLunaIDServiceProtocol

Objective-C

@protocol LCLunaIDServiceProtocol <NSObject>

Swift

protocol LCLunaIDServiceProtocol : NSObjectProtocol

Protocol which describes public API to access common recognition functionality

  • Version of FaceEngine from LunaSDK

    Declaration

    Objective-C

    - (NSString *_Nonnull)faceEngineVersion;

    Swift

    func faceEngineVersion() -> String

  • Activate license and return nil in case of success but NSError object in case of problems

    Declaration

    Objective-C

    - (NSError *_Nullable)activateLicense;

    Swift

    func activateLicense() -> (any Error)?

    Return Value

    error in case it is occured

  • Activate license and return nil in case of success but NSError object in case of problems

    Declaration

    Objective-C

    - (NSError *_Nullable)activateLicenseWithConfig:
    (nonnull LCLicenseConfig *)licenseConfig;

    Swift

    func activateLicense(with licenseConfig: LCLicenseConfig) -> (any Error)?

    Return Value

    error in case it is occured

  • Detect faces in image

    Declaration

    Objective-C

    - (nonnull NSArray<LCFaceDetection *> *)detectFaces:(nonnull UIImage *)image;

    Swift

    func detectFaces(_ image: UIImage) -> [LCFaceDetection]

    Return Value

    array of detected faces

  • Compare descriptor of face detection and bestshot

    Declaration

    Objective-C

    - (CGFloat)match:(nonnull LCBestShotModel *)bestShot
    faceDetection:(nonnull LCFaceDetection *)faceDetection;

    Swift

    func match(_ bestShot: LCBestShotModel, faceDetection: LCFaceDetection) -> CGFloat

    Return Value

    score from 0.0 to 1.0 of matching

  • Compare two UIImages. Each image must contain only one face and be in portrait orientation. WARNING: Make sure that the LunaIDServiceProtocol instance is created with trackFaceIdentity enabled in its configuration; otherwise, this function will always return 0.

    Declaration

    Objective-C

    - (nullable NSNumber *)matchWithFirst:(nonnull UIImage *)firstImage
                               second:(nonnull UIImage *)secondImage
                                error:(NSError *_Nullable *_Nullable)error;

    Swift

    func match(withFirst firstImage: UIImage, second secondImage: UIImage) throws -> NSNumber

    Parameters

    firstImage

    first UIImage
    secondImage

    second UIImage
    error

    inout error object

    Return Value

    matching score from 0.0 to 1.0. In case of an error, the function should return 0