vision

func (Acl_entry_id_t) String ¶

func (e Acl_entry_id_t) String() string

func (Acl_flag_t) String ¶

func (e Acl_flag_t) String() string

func (Acl_perm_t) String ¶

func (e Acl_perm_t) String() string

func (Acl_tag_t) String ¶

func (e Acl_tag_t) String() string

func (Acl_type_t) String ¶

func (e Acl_type_t) String() string

func (CGLCPContextPriorityRequest) String ¶

func (e CGLCPContextPriorityRequest) String() string

func (Clockid_t) String ¶

func (e Clockid_t) String() string

func (Dispatch_autorelease_frequency_t) String ¶

func (e Dispatch_autorelease_frequency_t) String() string

func (Dispatch_block_flags_t) String ¶

func (e Dispatch_block_flags_t) String() string

func (EvCmd) String ¶

func (e EvCmd) String() string

func (Filesec_property_t) String ¶

func (e Filesec_property_t) String() string

func (Idtype_t) String ¶

func (e Idtype_t) String() string

func (Ipc_info_object_type_t) String ¶

func (e Ipc_info_object_type_t) String() string

func (Launch_data_type_t) String ¶

func (e Launch_data_type_t) String() string

func (MDLabelDomain) String ¶

func (e MDLabelDomain) String() string

func (MDQueryOptionFlags) String ¶

func (e MDQueryOptionFlags) String() string

func (MDQuerySortOptionFlags) String ¶

func (e MDQuerySortOptionFlags) String() string

func (Mach_vm_range_flags_t) String ¶

func (e Mach_vm_range_flags_t) String() string

func (Mach_vm_range_flavor_t) String ¶

func (e Mach_vm_range_flavor_t) String() string

func (Mach_vm_range_tag_t) String ¶

func (e Mach_vm_range_tag_t) String() string

func (Mpo_flags_t) String ¶

func (e Mpo_flags_t) String() string

func (NXMouseButton) String ¶

func (e NXMouseButton) String() string

func (Os_clockid_t) String ¶

func (e Os_clockid_t) String() string

func (PMPageToPaperMappingType) String ¶

func (e PMPageToPaperMappingType) String() string

func (Ptrauth_key) String ¶

func (e Ptrauth_key) String() string

func (Qos_class_t) String ¶

func (e Qos_class_t) String() string

func (*VNAnimalBodyPoseObservation) AvailableJointGroupNames ¶

func (o *VNAnimalBodyPoseObservation) AvailableJointGroupNames() *foundation.NSArray[*foundation.NSString]

@brief All animal joints group names available in the observation.

func (*VNAnimalBodyPoseObservation) AvailableJointNames ¶

func (o *VNAnimalBodyPoseObservation) AvailableJointNames() *foundation.NSArray[*foundation.NSString]

@brief All animal joint names available in the observation.

func (*VNAnimalBodyPoseObservation) RecognizedPointForJointNameError ¶

func (o *VNAnimalBodyPoseObservation) RecognizedPointForJointNameError(jointName *foundation.NSString) (*VNRecognizedPoint, error)

@brief Obtain a specific normalized point for a named animal body joint. @param jointName The name of the animal body joint. @param error The address of a variable that will be populated with the error that describes the failure. If the caller does not require this information, NULL can be passed. @return the recognized point, or nil if the point could not be obtained.

func (*VNAnimalBodyPoseObservation) RecognizedPointsForJointsGroupNameError ¶

func (o *VNAnimalBodyPoseObservation) RecognizedPointsForJointsGroupNameError(jointsGroupName *foundation.NSString) (*foundation.NSDictionary[*foundation.NSString, *VNRecognizedPoint], error)

@brief Obtains the collection of points associated with a named animal body joints group. @discussion The obtained collection is a dictionary that provides the mapping of animal join names to the recognized point. @param jointsGroupName The name of the animal body joints group. @param error The address of a variable that will be populated with the error that describes the failure. If the caller does not require this information, NULL can be passed. @return a dictionary of recognized points in the group, or nil if an error was encountered.

func (VNBarcodeCompositeType) String ¶

func (e VNBarcodeCompositeType) String() string

func (*VNBarcodeObservation) BarcodeDescriptor ¶

func (o *VNBarcodeObservation) BarcodeDescriptor() *coreimage.CIBarcodeDescriptor

@brief An object that provides symbology-specific data for the barcode.

func (*VNBarcodeObservation) IsColorInverted ¶

func (o *VNBarcodeObservation) IsColorInverted() bool

@brief A boolean indicating if the barcode is color inverted

func (*VNBarcodeObservation) IsGS1DataCarrier ¶

func (o *VNBarcodeObservation) IsGS1DataCarrier() bool

@brief Boolean indicating if the barcode carries any GS1 application specific data

func (*VNBarcodeObservation) PayloadData ¶

func (o *VNBarcodeObservation) PayloadData() *foundation.NSData

@brief The raw data representation of the barcode's payload if available.

func (*VNBarcodeObservation) PayloadStringValue ¶

func (o *VNBarcodeObservation) PayloadStringValue() *foundation.NSString

@brief The string representation of the barcode's payload. Depending on the symbology of the barcode and/or the payload data itself, a string representation of the payload may not be available.

func (*VNBarcodeObservation) SupplementalCompositeType ¶

func (o *VNBarcodeObservation) SupplementalCompositeType() VNBarcodeCompositeType

@brief Represents the supplemental composite type. Currently, this can only refer to the composite flag of the 2D symbology as part of a GS1 composite symbology. This attribute only exists when the primary descriptor is the 1D symbology of a GS1 composite symbology, and of which a valid 2D counterpart has been coalesced into.

func (*VNBarcodeObservation) SupplementalPayloadData ¶

func (o *VNBarcodeObservation) SupplementalPayloadData() *foundation.NSData

@brief Decode the supplemental code in the descriptor as a string value. Note: this property might be expensive the first time it is accessed When non-NULL, and if the descriptor has supplemental raw payload data, the pointee will be set to the decoded supplemental payload raw data value.

func (*VNBarcodeObservation) SupplementalPayloadString ¶

func (o *VNBarcodeObservation) SupplementalPayloadString() *foundation.NSString

@brief Decode the supplemental code in the descriptor as a string value. Note: this property might be expensive the first time it is accessed When non-NULL, and if the descriptor has supplemental raw payload data, the pointee will be set to the decoded supplemental payload string value.

func (*VNBarcodeObservation) Symbology ¶

func (o *VNBarcodeObservation) Symbology() *foundation.NSString

@brief The symbology of the detected barcode.

func (VNChirality) String ¶

func (e VNChirality) String() string

func (*VNCircle) Center ¶

func (o *VNCircle) Center() *VNPoint

@brief Returns circle center.

func (*VNCircle) ContainsPoint ¶

func (o *VNCircle) ContainsPoint(point *VNPoint) bool

@brief Returns YES if the point is inside the circle, including the boundary.

func (*VNCircle) ContainsPointInCircumferentialRingOfWidth ¶

func (o *VNCircle) ContainsPointInCircumferentialRingOfWidth(point *VNPoint, ringWidth float64) bool

@brief Returns YES if the point is within the ring bound by two circles [radius - delta; radius + delta].

func (*VNCircle) Diameter ¶

func (o *VNCircle) Diameter() float64

@brief Returns circle diameter.

func (*VNCircle) InitWithCenterDiameter ¶

func (o *VNCircle) InitWithCenterDiameter(center *VNPoint, diameter float64) *VNCircle

@brief Initializes VNCircle object with given circle center and circle diameter.

func (*VNCircle) InitWithCenterRadius ¶

func (o *VNCircle) InitWithCenterRadius(center *VNPoint, radius float64) *VNCircle

@brief Initializes VNCircle object with given circle center and circle radius.

func (*VNCircle) Radius ¶

func (o *VNCircle) Radius() float64

@brief Returns circle radius.

func (*VNClassificationObservation) HasMinimumPrecisionForRecall ¶

func (o *VNClassificationObservation) HasMinimumPrecisionForRecall(minimumPrecision float32, recall float32) bool

@brief Determine whether or not the observation's operation point for a specific recall has a minimum precision value. @param minimumPrecision The minimum precision desired for an operation point. @param recall The recall value used to select the operation point. @return YES if the precision value for the operation point specified by a recall value has the minimum value; otherwise, NO.

func (*VNClassificationObservation) HasMinimumRecallForPrecision ¶

func (o *VNClassificationObservation) HasMinimumRecallForPrecision(minimumRecall float32, precision float32) bool

@brief Determine whether or not the observation's operation point for a specific precision has a minimum recall value. @param minimumRecall The minimum recall desired for an operation point. @param precision The precision value used to select the operation point. @return YES if the recall value for the operation point specified by a precision value has the minimum value; otherwise, NO.

func (*VNClassificationObservation) HasPrecisionRecallCurve ¶

func (o *VNClassificationObservation) HasPrecisionRecallCurve() bool

@brief Determine whether or not precision/recall curves are available with the observation. @discussion If this property is YES, then all other precision/recall related methods in this addition can be called.

func (*VNClassificationObservation) Identifier ¶

func (o *VNClassificationObservation) Identifier() *foundation.NSString

func (*VNClassifyImageRequest) SupportedIdentifiersAndReturnError ¶

func (o *VNClassifyImageRequest) SupportedIdentifiersAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of identifiers supported by the target request. @discussion This method will return the collection of all possible classification identifiers that are produced by the target request based on its current state of configuration at the time of the call. @param error The address of the variable that will be populated with the error if the call fails. @return The collection of classification identifiers, or nil if a failure occurs.

func (*VNContour) AspectRatio ¶

func (o *VNContour) AspectRatio() float32

@brief The aspect ratio of the contour from the original image aspect ratio expressed as width/height

func (*VNContour) ChildContourAtIndexError ¶

func (o *VNContour) ChildContourAtIndexError(childContourIndex uint) (*VNContour, error)

@brief Returns a VNContour object that is a child of this VNContour at the specified index. @param childContourIndex The index into the childContours array. @param error The error returned if the child contour cannot be provided. @return The VNContour object at the specified index path, or nil of a failure occurs.

func (*VNContour) ChildContourCount ¶

func (o *VNContour) ChildContourCount() int

@brief The total number of child contours in the target contour. @discussion The use of this property is preferred over childContours.count due to the cost of building the child objects.

func (*VNContour) ChildContours ¶

func (o *VNContour) ChildContours() *foundation.NSArray[*VNContour]

@brief The array of the contours enclosed by the target contour. @discussion This property may come with the cost of instantiating new VNContour objects; therefore, clients are strongly encouraged to hold the results in a local variable instead of repeatedly invoking it.

func (*VNContour) IndexPath ¶

func (o *VNContour) IndexPath() *foundation.NSIndexPath

@brief The path to the target VNContour as it is stored in the owning VNContoursObservation's hierarchy of contours.

func (*VNContour) NormalizedPath ¶

func (o *VNContour) NormalizedPath() unsafe.Pointer

@brief The contour represented as a CGPath in normalized coordinates. @details The path is owned by this object and therefore will be alive as long as the the observation is alive.

func (*VNContour) NormalizedPoints ¶

func (o *VNContour) NormalizedPoints() unsafe.Pointer

@brief The array of points in normalized coordinates that describe the contour. @discussion Provides the address of a buffer containing the array of (x,y) points stored as a simd_float2 value. This buffer is owned by the target object and is guaranteed to exist as long as this VNContour instance exists.

func (*VNContour) PointCount ¶

func (o *VNContour) PointCount() int

@brief The number of points that describe the contour.

func (*VNContour) PolygonApproximationWithEpsilonError ¶

func (o *VNContour) PolygonApproximationWithEpsilonError(epsilon float32) (*VNContour, error)

@brief Simplifies the contour's collection of points into a polygon using the Ramer Douglas Peucker Algorithm. @discussion See <https://en.wikipedia.org/wiki/Ramer–Douglas–Peucker_algorithm> @param epsilon Points that have a perpendicular distance to the line segment they are on which are greater than epsilon are kept, others are eliminated. @param error The error returned if a simplified contour cannot be created. @return A new VNContour object with a simplified polygon consisting of a subset of the points that defined the original VNContour.

func (*VNContoursObservation) ContourAtIndexError ¶

func (o *VNContoursObservation) ContourAtIndexError(contourIndex int) (*VNContour, error)

@brief Returns the VNContour object at the specified index, irrespective of hierarchy. @param contourIndex The index of the contour to request. Valid values are in the range [0..contourCount-1]. @param error The error returned if the index path is out of range. @return The detected VNContour at the specified index without regard to hierarchy.

func (*VNContoursObservation) ContourAtIndexPathError ¶

func (o *VNContoursObservation) ContourAtIndexPathError(indexPath *foundation.NSIndexPath) (*VNContour, error)

@brief Returns the VNContour object at the specified index path. @details Use the indexPath property from a VNContour instance to pass to this method. @param indexPath The index path is the heirarchical path to the contour. @param error The error returned if the index path is out of range. @return The VNContour object at the specified index path.

func (*VNContoursObservation) ContourCount ¶

func (o *VNContoursObservation) ContourCount() int

@brief The total number of contours detected.

func (*VNContoursObservation) NormalizedPath ¶

func (o *VNContoursObservation) NormalizedPath() unsafe.Pointer

@brief Obtain all of the contours represented as a CGPath in normalized coordinates. @details The path is owned by the observation and therefore will be alive as long as the the observation is alive.

func (*VNContoursObservation) TopLevelContourCount ¶

func (o *VNContoursObservation) TopLevelContourCount() int

@brief The total number of top-level contours detected.

func (*VNContoursObservation) TopLevelContours ¶

func (o *VNContoursObservation) TopLevelContours() *foundation.NSArray[*VNContour]

@brief An array of the top level contours (i.e. contours that are not enclosed inside another contour),. @details This array constitutes the top of the contour hierarchy. Each contour object can be further iterated to determine its children. @see VNContour for more information.

func (*VNCoreMLFeatureValueObservation) FeatureName ¶

func (o *VNCoreMLFeatureValueObservation) FeatureName() *foundation.NSString

@brief The name used in the model description of the CoreML model that produced this observation allowing to correlate the observation back to the output of the model.

func (*VNCoreMLFeatureValueObservation) FeatureValue ¶

func (o *VNCoreMLFeatureValueObservation) FeatureValue() *coreml.MLFeatureValue

@brief The result VNCoreMLRequest where the model produces an MLFeatureValue that is neither a classification or image. Refer to the Core ML documentation and the model itself for the handling of the content of the featureValue.

func (*VNCoreMLModel) FeatureProvider ¶

func (o *VNCoreMLModel) FeatureProvider() coreml.MLFeatureProvider

@brief An optional object conforming to the MLFeatureProvider protocol that is used by the model during the predict call to support inputs that are not supplied by Vision. Vision will provide the image for the inputImageFeatureName from the the VNRequestHandler. A feature provider is necessary for models that have more than one input and require those parameters to be set. Models that only have one image input will not use the feature provider as that input will be set by Vision.

func (*VNCoreMLModel) InputImageFeatureName ¶

func (o *VNCoreMLModel) InputImageFeatureName() *foundation.NSString

@brief The name of the MLFeatureValue that Vision will set from the VNRequestHandler. Vision will use the first input it finds by default but it can be set to another featureName instead.

func (*VNCoreMLModel) SetFeatureProvider ¶

func (o *VNCoreMLModel) SetFeatureProvider(featureProvider coreml.MLFeatureProvider)

func (*VNCoreMLModel) SetInputImageFeatureName ¶

func (o *VNCoreMLModel) SetInputImageFeatureName(inputImageFeatureName *foundation.NSString)

func (*VNCoreMLRequest) ImageCropAndScaleOption ¶

func (o *VNCoreMLRequest) ImageCropAndScaleOption() VNImageCropAndScaleOption

func (*VNCoreMLRequest) InitWithModel ¶

func (o *VNCoreMLRequest) InitWithModel(model *VNCoreMLModel) *VNCoreMLRequest

@brief Create a new request with a model. @param model The VNCoreMLModel to be used.

func (*VNCoreMLRequest) InitWithModelCompletionHandler ¶

func (o *VNCoreMLRequest) InitWithModelCompletionHandler(model *VNCoreMLModel, completionHandler func(*VNRequest, unsafe.Pointer)) *VNCoreMLRequest

@brief Create a new request with a model. @param model The VNCoreMLModel to be used. @param completionHandler The block that is invoked when the request has been performed.

func (*VNCoreMLRequest) Model ¶

func (o *VNCoreMLRequest) Model() *VNCoreMLModel

@brief The model from CoreML wrapped in a VNCoreMLModel.

func (*VNCoreMLRequest) SetImageCropAndScaleOption ¶

func (o *VNCoreMLRequest) SetImageCropAndScaleOption(imageCropAndScaleOption VNImageCropAndScaleOption)

func (*VNDetectAnimalBodyPoseRequest) SupportedJointNamesAndReturnError ¶

func (o *VNDetectAnimalBodyPoseRequest) SupportedJointNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of animal body joint names that are supported by a request object configured with a request revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNAnimalBodyPoseObservationJointName symbols that are supported by the request, or nil if a failure occurs.

func (*VNDetectAnimalBodyPoseRequest) SupportedJointsGroupNamesAndReturnError ¶

func (o *VNDetectAnimalBodyPoseRequest) SupportedJointsGroupNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of animal body joints group names that are supported by a request object configured with a request revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNAnimalBodyPoseObservationJointsGroupName symbols that are supported by the request, or nil if a failure occurs.

func (*VNDetectBarcodesRequest) CoalesceCompositeSymbologies ¶

func (o *VNDetectBarcodesRequest) CoalesceCompositeSymbologies() bool

@discussion An option to coalesce multiple codes if applicable based on the symbology

func (*VNDetectBarcodesRequest) SetCoalesceCompositeSymbologies ¶

func (o *VNDetectBarcodesRequest) SetCoalesceCompositeSymbologies(coalesceCompositeSymbologies bool)

func (*VNDetectBarcodesRequest) SetSymbologies ¶

func (o *VNDetectBarcodesRequest) SetSymbologies(symbologies *foundation.NSArray[*foundation.NSString])

func (*VNDetectBarcodesRequest) SupportedSymbologiesAndReturnError ¶

func (o *VNDetectBarcodesRequest) SupportedSymbologiesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of barcode symbologies that can be recognized by the request in its current configuration. @discussion Calling this method could be a potentially expensive operation. @return An array of VNBarcodeSymbology objects describing the symbologies recognized by the request in its current configuration.

func (*VNDetectBarcodesRequest) Symbologies ¶

func (o *VNDetectBarcodesRequest) Symbologies() *foundation.NSArray[*foundation.NSString]

@discussion The collection of barcode symbologies that are to be detected in the image. The default is to scan for all possible symbologies. Setting a revision on the request will reset the symbologies to all symbologies for the specified revision.

func (*VNDetectContoursRequest) ContrastAdjustment ¶

func (o *VNDetectContoursRequest) ContrastAdjustment() float32

@brief The amount to adjust the image's contrast by. A value of +1.0 means that the contrast is not adjusted. The default value is +2.0. @discussion Contour detection works best with high contrast images. The default value of 2 doubles the image's contrast to aid in detection. If the image already has a high contrast then this value should be set to 1.

func (*VNDetectContoursRequest) ContrastPivot ¶

func (o *VNDetectContoursRequest) ContrastPivot() *foundation.NSNumber

@brief The pixel value to use as a pivot for the contrast. Valid values are from [0.0 ... +1.0], or nil to auto-detect based on image intensity. The default value is +0.5 (i.e. pixel center).

func (*VNDetectContoursRequest) DetectsDarkOnLight ¶

func (o *VNDetectContoursRequest) DetectsDarkOnLight() bool

@brief Identifies to the request if detecting a dark object on a light background, or vice versa, to aid in detection. The default value is YES.

func (*VNDetectContoursRequest) MaximumImageDimension ¶

func (o *VNDetectContoursRequest) MaximumImageDimension() uint

@brief The limit on the maximum dimension of the image to be used for contour detection. Valid range of values is [64 ... NSUIntegerMax]. The default value is 512. @discussion As the contour request is compute intensive, the input image is scaled down maintaining aspect ratio (if needed), such that its maximum dimension is the value of this property. The image never gets scaled up, so specifying the maximum value ensures that the image gets processed in its original size and not downscaled.

func (*VNDetectContoursRequest) SetContrastAdjustment ¶

func (o *VNDetectContoursRequest) SetContrastAdjustment(contrastAdjustment float32)

func (*VNDetectContoursRequest) SetContrastPivot ¶

func (o *VNDetectContoursRequest) SetContrastPivot(contrastPivot *foundation.NSNumber)

func (*VNDetectContoursRequest) SetDetectsDarkOnLight ¶

func (o *VNDetectContoursRequest) SetDetectsDarkOnLight(detectsDarkOnLight bool)

func (*VNDetectContoursRequest) SetMaximumImageDimension ¶

func (o *VNDetectContoursRequest) SetMaximumImageDimension(maximumImageDimension uint)

func (*VNDetectFaceLandmarksRequest) Constellation ¶

func (o *VNDetectFaceLandmarksRequest) Constellation() VNRequestFaceLandmarksConstellation

@property property constellation @abstract Constellation type defines how many landmark points are used to map a face. Revisions 1, 2, and 3 of the request support 65 points, where Revision 3 also supports 76 points.

func (*VNDetectFaceLandmarksRequest) SetConstellation ¶

func (o *VNDetectFaceLandmarksRequest) SetConstellation(constellation VNRequestFaceLandmarksConstellation)

func (*VNDetectHumanBodyPose3DRequest) Init ¶

func (o *VNDetectHumanBodyPose3DRequest) Init() *VNDetectHumanBodyPose3DRequest

@brief Creates a new VNDetectHumanBodyPose3DRequest with no completion handler.

func (*VNDetectHumanBodyPose3DRequest) InitWithCompletionHandler ¶

func (o *VNDetectHumanBodyPose3DRequest) InitWithCompletionHandler(completionHandler func(*VNRequest, unsafe.Pointer)) *VNDetectHumanBodyPose3DRequest

@brief Creates a new VNDetectHumanBodyPose3DRequest with completion handler.

func (*VNDetectHumanBodyPose3DRequest) SupportedJointNamesAndReturnError ¶

func (o *VNDetectHumanBodyPose3DRequest) SupportedJointNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human body joint names that are supported by a given request revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanBodyPose3DObservationJointName symbols that are supported by the request revision, or nil if a failure occurs.

func (*VNDetectHumanBodyPose3DRequest) SupportedJointsGroupNamesAndReturnError ¶

func (o *VNDetectHumanBodyPose3DRequest) SupportedJointsGroupNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human body joints group names that are supported by a request object configured with a request revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanBody3DPoseObservationJointsGroupName symbols that are supported by the request, or nil if a failure occurs.

func (*VNDetectHumanBodyPoseRequest) SupportedJointNamesAndReturnError ¶

func (o *VNDetectHumanBodyPoseRequest) SupportedJointNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human body joint names that are supported by a given request object configured with a specific revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanBodyPoseObservationJointName symbols that are supported by the request revision, or nil if a failure occurs.

func (*VNDetectHumanBodyPoseRequest) SupportedJointsGroupNamesAndReturnError ¶

func (o *VNDetectHumanBodyPoseRequest) SupportedJointsGroupNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human body joints group names that are supported by a given request object configured with a specific revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanBodyPoseObservationJointsGroupName symbols that are supported by the request revision, or nil if a failure occurs.

func (*VNDetectHumanHandPoseRequest) MaximumHandCount ¶

func (o *VNDetectHumanHandPoseRequest) MaximumHandCount() uint

@brief Defines an upper bounds to the maximum number of hands that will be processed for key points in an image. @discussion The complexity in key points determination is scalable by the number of hands to be processed. All hands detected in an image will be ordered by relative size, with only the N largest ones having key points determined. The default value for this property is 2. The maximum value for VNDetectHumanHandPoseRequestRevision1 is 6.

func (*VNDetectHumanHandPoseRequest) SetMaximumHandCount ¶

func (o *VNDetectHumanHandPoseRequest) SetMaximumHandCount(maximumHandCount uint)

func (*VNDetectHumanHandPoseRequest) SupportedJointNamesAndReturnError ¶

func (o *VNDetectHumanHandPoseRequest) SupportedJointNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human hand joint names that are supported by a given request object configured with a specific revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanHandPoseObservationJointName symbols that are supported by the request revision, or nil if a failure occurs.

func (*VNDetectHumanHandPoseRequest) SupportedJointsGroupNamesAndReturnError ¶

func (o *VNDetectHumanHandPoseRequest) SupportedJointsGroupNamesAndReturnError() (*foundation.NSArray[*foundation.NSString], error)

@brief Obtain the collection of human hand joints group names that are supported by a given request object configured with a specific revision. @param error The address of a variable that will be populated with an error upon failure. If the caller does not need this information, NULL can be passed. @return An array of VNHumanHandPoseObservationJointsGroupName symbols that are supported by the request revision, or nil if a failure occurs.

func (*VNDetectHumanRectanglesRequest) SetUpperBodyOnly ¶

func (o *VNDetectHumanRectanglesRequest) SetUpperBodyOnly(upperBodyOnly bool)

func (*VNDetectHumanRectanglesRequest) UpperBodyOnly ¶

func (o *VNDetectHumanRectanglesRequest) UpperBodyOnly() bool

@brief Boolean property to specify whether the human upper body or full body needs to be detected. The default is YES, meaning the request is setup to detect upper body only

func (*VNDetectRectanglesRequest) MaximumAspectRatio ¶

func (o *VNDetectRectanglesRequest) MaximumAspectRatio() float32

@brief Specifies the maximum aspect ratio of the rectangle(s) to look for, range [0.0, 1.0], default 1.0

func (*VNDetectRectanglesRequest) MaximumObservations ¶

func (o *VNDetectRectanglesRequest) MaximumObservations() uint

@brief Specifies the maximum number of rectangles to be returned. The default is 1. Setting this property to 0 will allow an unlimited number of observations to be returned.

func (*VNDetectRectanglesRequest) MinimumAspectRatio ¶

func (o *VNDetectRectanglesRequest) MinimumAspectRatio() float32

@brief Specifies the minimum aspect ratio of the rectangle(s) to look for, range [0.0, 1.0], default 0.5

func (*VNDetectRectanglesRequest) MinimumConfidence ¶

func (o *VNDetectRectanglesRequest) MinimumConfidence() float32

@brief Specifies a minimum confidence score, range [0.0, 1.0], default 0.0. Any rectangles with a lower confidence score will not be returned.

func (*VNDetectRectanglesRequest) MinimumSize ¶

func (o *VNDetectRectanglesRequest) MinimumSize() float32

@brief Specifies the minimum size of the rectangle to be detected, as a proportion of the smallest dimension, range [0.0, 1.0], default .2. Any smaller rectangles that may have been detected will not be returned.

func (*VNDetectRectanglesRequest) QuadratureTolerance ¶

func (o *VNDetectRectanglesRequest) QuadratureTolerance() float32

@brief Specifies the maximum number of degrees a rectangle corner angle can deviate from 90 degrees, range [0,45], default 30

func (*VNDetectRectanglesRequest) SetMaximumAspectRatio ¶

func (o *VNDetectRectanglesRequest) SetMaximumAspectRatio(maximumAspectRatio float32)

func (*VNDetectRectanglesRequest) SetMaximumObservations ¶

func (o *VNDetectRectanglesRequest) SetMaximumObservations(maximumObservations uint)

func (*VNDetectRectanglesRequest) SetMinimumAspectRatio ¶

func (o *VNDetectRectanglesRequest) SetMinimumAspectRatio(minimumAspectRatio float32)

func (*VNDetectRectanglesRequest) SetMinimumConfidence ¶

func (o *VNDetectRectanglesRequest) SetMinimumConfidence(minimumConfidence float32)

func (*VNDetectRectanglesRequest) SetMinimumSize ¶

func (o *VNDetectRectanglesRequest) SetMinimumSize(minimumSize float32)

func (*VNDetectRectanglesRequest) SetQuadratureTolerance ¶

func (o *VNDetectRectanglesRequest) SetQuadratureTolerance(quadratureTolerance float32)

func (*VNDetectTextRectanglesRequest) ReportCharacterBoxes ¶

func (o *VNDetectTextRectanglesRequest) ReportCharacterBoxes() bool

@brief Specify whether or not the bounding boxes of individual characters should also be returned in the resultant VNTextObservations. Default is NO.

func (*VNDetectTextRectanglesRequest) SetReportCharacterBoxes ¶

func (o *VNDetectTextRectanglesRequest) SetReportCharacterBoxes(reportCharacterBoxes bool)

func (*VNDetectTrajectoriesRequest) InitWithFrameAnalysisSpacingTrajectoryLengthCompletionHandler ¶

func (o *VNDetectTrajectoriesRequest) InitWithFrameAnalysisSpacingTrajectoryLengthCompletionHandler(frameAnalysisSpacing coremedia.CMTime, trajectoryLength int, completionHandler func(*VNRequest, unsafe.Pointer)) *VNDetectTrajectoriesRequest

@brief Create a new request that will detect the trajectory of a shape in motion. @param frameAnalysisSpacing The reciprocal of the maximum rate at which buffers will be processed. The request will not process buffers that fall within the frameAnalysisSpacing after it has performed the analysis. The analysis is not done by wall time but by analysis of the time stamps of the samplebuffers being processed. This property is for instance useful to throttle the processing on slower devices. If this is set to kCMTimeZero then no frames get skipped in the analysis. @param trajectoryLength The number of points required to analyze a parabola that indicates a trajectory. Must be at least 5. @param completionHandler The block to be invoked after the request has completed its processing. The completion handler gets executed on the same dispatch queue as the request being executed.

func (*VNDetectTrajectoriesRequest) ObjectMaximumNormalizedRadius ¶

func (o *VNDetectTrajectoriesRequest) ObjectMaximumNormalizedRadius() float32

@brief Specifies the maximum radius of the bounding circle of the object to be tracked. This can be used to filter out unwanted trajectories from larger objects moving through the scene. The default is 1.0, which means no filtering is applied. Changing the maximum from frame to frame can produce eratic trajectories as objects will either disappear or be added to the tracking base on this filtering. The size is specified in normalized coordinates.

func (*VNDetectTrajectoriesRequest) ObjectMinimumNormalizedRadius ¶

func (o *VNDetectTrajectoriesRequest) ObjectMinimumNormalizedRadius() float32

@brief Specifies the minimum radius of the bounding circle of the object to be tracked. This can be used to filter out noise and small objects. The default is 0.0, which means no filtering is applied. Changing the property from frame to frame can produce eratic trajectories as objects will either disappear or be added to the tracking base on this filtering. The value is specified in normalized coordinates.

func (*VNDetectTrajectoriesRequest) SetObjectMaximumNormalizedRadius ¶

func (o *VNDetectTrajectoriesRequest) SetObjectMaximumNormalizedRadius(objectMaximumNormalizedRadius float32)

func (*VNDetectTrajectoriesRequest) SetObjectMinimumNormalizedRadius ¶

func (o *VNDetectTrajectoriesRequest) SetObjectMinimumNormalizedRadius(objectMinimumNormalizedRadius float32)

func (*VNDetectTrajectoriesRequest) SetTargetFrameTime ¶

func (o *VNDetectTrajectoriesRequest) SetTargetFrameTime(targetFrameTime coremedia.CMTime)

func (*VNDetectTrajectoriesRequest) TargetFrameTime ¶

func (o *VNDetectTrajectoriesRequest) TargetFrameTime() coremedia.CMTime

@brief Specifies the desired target frame time for processing trajectory detection. This can be used for real-time processing of frames, which requires execution with a specific amount of time. The target frame time is evaluated from frame-to-frame. If processing takes longer than this target frame time for the currect frame, it will attempt to reduce the amount of time taken by reducing the accuracy (down to a set minimum) for the next frame. If a frame takes less time than this target, then accuracy of the next frame will be increased (up to a set maximum). The default value is kCMTimeIndefinite, meaning accuracy stays at the predefined maximum.

func (*VNDetectTrajectoriesRequest) TrajectoryLength ¶

func (o *VNDetectTrajectoriesRequest) TrajectoryLength() int

@brief The number of points required to analyze a parabola that indicates a trajectory.

func (*VNDetectedObjectObservation) BoundingBox ¶

func (o *VNDetectedObjectObservation) BoundingBox() corefoundation.CGRect

@brief The bounding box of the detected object. The coordinates are normalized to the dimensions of the processed image, with the origin at the image's lower-left corner.

func (*VNDetectedObjectObservation) GlobalSegmentationMask ¶

func (o *VNDetectedObjectObservation) GlobalSegmentationMask() *VNPixelBufferObservation

@brief The resulting CVPixelBuffer from requests that generate a segmentation mask for the entire image.

func (*VNDetectedPoint) Confidence ¶

func (o *VNDetectedPoint) Confidence() float32

func (VNElementType) String ¶

func (e VNElementType) String() string

func (VNErrorCode) String ¶

func (e VNErrorCode) String() string

func (*VNFaceLandmarkRegion) PointCount ¶

func (o *VNFaceLandmarkRegion) PointCount() uint

func (*VNFaceLandmarkRegion2D) NormalizedPoints ¶

func (o *VNFaceLandmarkRegion2D) NormalizedPoints() unsafe.Pointer

@brief Obtains the array of normalized landmark points. @discussion Provides the address of a buffer containing the array of CGPoints representing the landmark points. This buffer is owned by the target object and is guaranteed to exist as long as the VNFaceLandmarkRegion2D does. @return the address of the array of pointCount points.

func (*VNFaceLandmarkRegion2D) PointsClassification ¶

func (o *VNFaceLandmarkRegion2D) PointsClassification() VNPointsClassification

@brief Describes how to interpret the points provided by the region.

func (*VNFaceLandmarkRegion2D) PointsInImageOfSize ¶

func (o *VNFaceLandmarkRegion2D) PointsInImageOfSize(imageSize corefoundation.CGSize) *corefoundation.CGPoint

@brief Provides the array of landmark points in the coordinate space of a specific image size. @discussion Provides the address of a buffer containing the array of CGPoints representing the landmark points in the coordinate space of a specific image size. This buffer is owned by the target object and is guaranteed to exist as long as the VNFaceLandmarkRegion2D does. @param imageSize The pixel dimensions of the image in which the landmark points are being presented. @return the address of the array of pointCount points, or NULL if the conversion could not take place.

func (*VNFaceLandmarkRegion2D) PrecisionEstimatesPerPoint ¶

func (o *VNFaceLandmarkRegion2D) PrecisionEstimatesPerPoint() *foundation.NSArray[*foundation.NSNumber]

@brief Obtains the array of accuracy placement estimates per landmark point. @discussion Provides the NSArray object containing landmarks accuracy placement estimates per landmark point. This property is only populated when VNDetectFaceLandmarksRequest object is configured with VNRequestFaceLandmarksConstellation76Points. It is set to nil for other constellations @return NSArray object of NSNumber(s) initialized to floating point values.

func (*VNFaceLandmarks) Confidence ¶

func (o *VNFaceLandmarks) Confidence() float32

func (*VNFaceLandmarks2D) AllPoints ¶

func (o *VNFaceLandmarks2D) AllPoints() *VNFaceLandmarkRegion2D

@brief allPoints the region containing all face landmark points.

func (*VNFaceLandmarks2D) FaceContour ¶

func (o *VNFaceLandmarks2D) FaceContour() *VNFaceLandmarkRegion2D

@brief faceContour the region containing the points that describe the face contour from cheek over chin to cheek.

func (*VNFaceLandmarks2D) InnerLips ¶

func (o *VNFaceLandmarks2D) InnerLips() *VNFaceLandmarkRegion2D

@brief innerLips the region containing the points describing the outline of the space between the of the lips.

func (*VNFaceLandmarks2D) LeftEye ¶

func (o *VNFaceLandmarks2D) LeftEye() *VNFaceLandmarkRegion2D

@brief leftEye the region containing the points describing the outline of the left eye.

func (*VNFaceLandmarks2D) LeftEyebrow ¶

func (o *VNFaceLandmarks2D) LeftEyebrow() *VNFaceLandmarkRegion2D

@brief leftEyebrow the region containing the points describing the trace of the left eyebrow.

func (*VNFaceLandmarks2D) LeftPupil ¶

func (o *VNFaceLandmarks2D) LeftPupil() *VNFaceLandmarkRegion2D

@brief leftPupil the region containing the point where the left pupil is located. This value may be inaccurate if the face isBlinking.

func (*VNFaceLandmarks2D) MedianLine ¶

func (o *VNFaceLandmarks2D) MedianLine() *VNFaceLandmarkRegion2D

@brief medianLine the region containing the points describing the trace of the center line of the face.

func (*VNFaceLandmarks2D) Nose ¶

func (o *VNFaceLandmarks2D) Nose() *VNFaceLandmarkRegion2D

@brief nose the region containing the points describing the outline of the nose.

func (*VNFaceLandmarks2D) NoseCrest ¶

func (o *VNFaceLandmarks2D) NoseCrest() *VNFaceLandmarkRegion2D

@brief noseCrest the region containing the points describing the trace of the center crest of the nose.

func (*VNFaceLandmarks2D) OuterLips ¶

func (o *VNFaceLandmarks2D) OuterLips() *VNFaceLandmarkRegion2D

@brief outer lips the region containing the points describing the outline of the outside of the lips.

func (*VNFaceLandmarks2D) RightEye ¶

func (o *VNFaceLandmarks2D) RightEye() *VNFaceLandmarkRegion2D

@brief rightEye the region containing the points describing the outline of the right eye.

func (*VNFaceLandmarks2D) RightEyebrow ¶

func (o *VNFaceLandmarks2D) RightEyebrow() *VNFaceLandmarkRegion2D

@brief rightEyebrow the region containing the points describing the trace of the right eyebrow.

func (*VNFaceLandmarks2D) RightPupil ¶

func (o *VNFaceLandmarks2D) RightPupil() *VNFaceLandmarkRegion2D

@brief rightPupil the region containing the point where the right pupil is located. This value may be inaccurate if the face isBlinking.