Package apple.vision

Class VNFaceObservation

  • All Implemented Interfaces:
    NSCoding, NSCopying, NSSecureCoding, NSObject, VNRequestRevisionProviding
    public class VNFaceObservation
extends VNDetectedObjectObservation
    VNFaceObservation [@superclass] VNObservation VNFaceObservation is the result of a face detection request or derivatives like a face landmark request. The properties filled in this obervation depend on the request being performed. For instance if just a VNDetectFaceRectanglesRequest was performed the landmarks will not be populated. VNFaceObservation are also used as inputs to other request as defined by the VNFaceObservationAccepting protocol. An example would be the VNDetectFaceLandmarksRequest. This can be helpful for instance if the face rectangles in an image are not derived from a VNDetectFaceRectanglesRequest but instead come from other sources like EXIF or other face detectors. In that case the client of the API creates a VNFaceObservation with the boundingBox (in normalized coordinates) that were based on those detected faces.

    • Constructor Detail

      • VNFaceObservation

        protected VNFaceObservation​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • hash_static

        public static long hash_static()

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • landmarks

        public VNFaceLandmarks2D landmarks()
        The face landmarks populated by the VNDetectFaceLandmarksRequest. This is set to nil if only a VNDetectFaceRectanglesRequest was performed.

      • new_objc

        public static java.lang.Object new_objc()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • supportsSecureCoding

        public static boolean supportsSecureCoding()

      • _supportsSecureCoding

        public boolean _supportsSecureCoding()
        Description copied from interface: NSSecureCoding
        This property must return YES on all classes that allow secure coding. Subclasses of classes that adopt NSSecureCoding and override initWithCoder: must also override this method and return YES. The Secure Coding Guide should be consulted when writing methods that decode data.
        Specified by:
        _supportsSecureCoding in interface NSSecureCoding
        Overrides:
        _supportsSecureCoding in class VNDetectedObjectObservation

      • version_static

        public static long version_static()

      • faceCaptureQuality

        public NSNumber faceCaptureQuality()
        The capture quality of the face as a normalized value between 0.0 and 1.0 that can be used to compare the quality of the face in terms of it capture attributes (lighting, blur, position). This score can be used to compare the capture quality of a face against other captures of the same face in a given set.

      • faceObservationWithRequestRevisionBoundingBoxRollYaw

        public static VNFaceObservation faceObservationWithRequestRevisionBoundingBoxRollYaw​(long requestRevision,
                                                                                     CGRect boundingBox,
                                                                                     NSNumber roll,
                                                                                     NSNumber yaw)
        Create a new VNFaceObservation with a normalized bounding box, roll and yaw.
        Parameters:
        requestRevision - The revision of the VNDetectFaceRectanglesRequest that provided the bounding box. If this observation is being created with data that did not originate from a Vision request, this parameter should be VNRequestRevisionUnspecified.
        roll - The roll angle of the face, reported in radians. A positive angle corresponds to counterclockwise direction, range [-Pi, Pi). If no roll information is avilable, this parameter should be nil.
        yaw - The yaw angle of the face, reported in radians. A positive angle corresponds to counterclockwise direction, range [-Pi/2, Pi/2). If no yaw information is avilable, this parameter should be nil.

      • observationWithRequestRevisionBoundingBox

        public static VNFaceObservation observationWithRequestRevisionBoundingBox​(long requestRevision,
                                                                          CGRect boundingBox)

      • roll

        public NSNumber roll()
        Face roll angle populated by VNDetectFaceRectanglesRequest. The roll is reported in radians, positive angle corresponds to counterclockwise direction, range [-Pi, Pi). nil value indicates that the roll angle hasn't been computed

      • yaw

        public NSNumber yaw()
        Face yaw angle populated by VNDetectFaceRectanglesRequest. The yaw is reported in radians, positive angle corresponds to counterclockwise direction, range [-Pi/2, Pi/2). nil value indicates that the yaw angle hasn't been computed