HOGDescriptor class

Inheritance

• Object
• CvObject<HOGDescriptor>
• ICvStruct<HOGDescriptor>
• CvStruct<HOGDescriptor>
• HOGDescriptor

Available extensions

• HOGDescriptorAsync

Constructors

HOGDescriptor.empty()

factory

HOGDescriptor.fromFile(String filename)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

factory

HOGDescriptor.fromPointer(HOGDescriptorPtr ptr, [bool attach = true])

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

props → List<Object?>

no setter, inherited

ptr ↔ Pointer<HOGDescriptor>

getter/setter pair, inherited

ref → HOGDescriptor

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

compute(Mat img, {(int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → (VecF32, VecPoint)

Computes HOG descriptors of given image.

computeAsync(Mat img, {(int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → Future<(VecF32, VecPoint)>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

computeGradient(InputArray img, {(int, int) paddingTL = (0, 0), (int, int) paddingBR = (0, 0)}) → (Mat, Mat)

Computes gradients and quantized gradient orientations.

computeGradientAsync(InputArray img, Mat grad, Mat angleOfs, {(int, int) paddingTL = (0, 0), (int, int) paddingBR = (0, 0)}) → Future<(Mat, Mat)>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

detect(InputArray img, {double hitThreshold = 0, (int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → (VecPoint, VecPoint)

Performs object detection without a multi-scale window.

detect2(InputArray img, {double hitThreshold = 0, (int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → (VecPoint, VecF64, VecPoint)

Performs object detection without a multi-scale window.

detect2Async(InputArray img, {double hitThreshold = 0, (int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → Future<(VecPoint, VecF64, VecPoint)>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

detectAsync(InputArray img, {double hitThreshold = 0, (int, int) winStride = (0, 0), (int, int) padding = (0, 0)}) → Future<(VecPoint, VecPoint)>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

detectMultiScale(InputArray image, {double hitThreshold = 0, int minNeighbors = 3, (int, int) winStride = (0, 0), (int, int) padding = (0, 0), double scale = 1.05, double groupThreshold = 2.0, bool useMeanshiftGrouping = false}) → VecRect

DetectMultiScale calls DetectMultiScale but allows setting parameters The detected objects are returned as a slice of image.Rectangle structs.

detectMultiScaleAsync(InputArray image, {double hitThreshold = 0, int minNeighbors = 3, (int, int) winStride = (0, 0), (int, int) padding = (0, 0), double scale = 1.05, double groupThreshold = 2.0, bool useMeanshiftGrouping = false}) → Future<VecRect>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

dispose() → void

getDescriptorSize() → int

getDescriptorSizeAsync() → Future<int>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

getWinSigma() → double

Returns winSigma value.

getWinSigmaAsync() → Future<double>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

groupRectangles(VecRect rectList, VecF64 weights, int groupThreshold, double eps) → (VecRect, VecF64)

Groups the object candidate rectangles.

groupRectanglesAsync(VecRect rectList, VecF64 weights, int groupThreshold, double eps) → Future<(VecRect, VecF64)>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

load(String name) → bool

loadAsync(String name) → Future<bool>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setSVMDetector(VecF32 det) → void

SetSVMDetector sets the data for the HOGDescriptor.

setSVMDetectorAsync(VecF32 det) → Future<void>

Available on HOGDescriptor, provided by the HOGDescriptorAsync extension

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

finalizer → NativeFinalizer

final

Static Methods

getDaimlerPeopleDetector() → VecF32

getDefaultPeopleDetector() → VecF32

HOGDefaultPeopleDetector returns a new Mat with the HOG DefaultPeopleDetector.