AgastFeatureDetector Class

Detects corners using the AGAST algorithm

Inheritance Hierarchy

SystemObject
  OpenCvSharpDisposableObject
    OpenCvSharpDisposableCvObject
      OpenCvSharpAlgorithm
        OpenCvSharpFeature2D
          OpenCvSharpAgastFeatureDetector

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 3.4.1.20180605-33-CaRLSharp

Syntax

C++

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public class AgastFeatureDetector : Feature2D

Public Class AgastFeatureDetector
	Inherits Feature2D

public ref class AgastFeatureDetector : public Feature2D

type AgastFeatureDetector =  
    class
        inherit Feature2D
    end

OpenCvSharp.AgastFeatureDetector = function();

Type.createClass(
	'OpenCvSharp.AgastFeatureDetector',
	OpenCvSharp.Feature2D);

The AgastFeatureDetector type exposes the following members.

Constructors

	Name	Description
	AgastFeatureDetector	Initializes a new instance of the AgastFeatureDetector class

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Properties

	Name	Description
	AllocatedMemory	Gets or sets a memory address allocated by AllocMemory. (Inherited from DisposableObject.)
	AllocatedMemorySize	Gets or sets the byte length of the allocated memory (Inherited from DisposableObject.)
	CvPtr	Native pointer of OpenCV structure (Inherited from DisposableCvObject.)
	DefaultNorm	(Inherited from Feature2D.)
	DescriptorSize	(Inherited from Feature2D.)
	DescriptorType	(Inherited from Feature2D.)
	Empty	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read (Inherited from Algorithm.)
	IsDisposed	Gets a value indicating whether this instance has been disposed. (Inherited from DisposableObject.)
	IsEnabledDispose	Gets or sets a value indicating whether you permit disposing this instance. (Inherited from DisposableObject.)
	NonmaxSuppression	if true, non-maximum suppression is applied to detected corners (keypoints).
	Threshold	threshold on difference between intensity of the central pixel and pixels of a circle around this pixel.
	Type	type one of the four neighborhoods as defined in the paper

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Methods

	Name	Description
	AllocGCHandle	Pins the object to be allocated by cvSetData. (Inherited from DisposableObject.)
	AllocMemory	Allocates the specified size of memory. (Inherited from DisposableObject.)
	Compute(InputArray, KeyPoint, OutputArray)	Compute the descriptors for a set of keypoints in an image. (Inherited from Feature2D.)
	Compute(IEnumerableMat, KeyPoint, IEnumerableMat)	Compute the descriptors for a keypoints collection detected in image collection. (Inherited from Feature2D.)
	Create	The AgastFeatureDetector constructor
	Detect(InputArray, Mat)	Detect keypoints in an image. (Inherited from Feature2D.)
	Detect(Mat, Mat)	Detect keypoints in an image. (Inherited from Feature2D.)
	Detect(IEnumerableMat, IEnumerableMat)	Detect keypoints in an image set. (Inherited from Feature2D.)
	DetectAndCompute	Detects keypoints and computes the descriptors (Inherited from Feature2D.)
	Dispose	Releases the resources (Inherited from DisposableObject.)
	DisposeManaged	Releases managed resources (Overrides DisposableObjectDisposeManaged.)
	DisposeUnmanaged	releases unmanaged resources (Inherited from DisposableCvObject.)
	Empty	Return true if detector object is empty (Inherited from Feature2D.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Destructor (Inherited from DisposableObject.)
	GetDefaultName	Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string. (Inherited from Algorithm.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	NotifyMemoryPressure	Notifies the allocated size of memory. (Inherited from DisposableObject.)
	Read	Reads algorithm parameters from a file storage (Inherited from Algorithm.)
	Save	Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage fs). (Inherited from Algorithm.)
	ThrowIfDisposed	If this object is disposed, then ObjectDisposedException is thrown. (Inherited from DisposableObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Write	Stores algorithm parameters in a file storage (Inherited from Algorithm.)

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Fields

	Name	Description
	AGAST_5_8
	AGAST_7_12d
	AGAST_7_12s
	dataHandle	Gets or sets a handle which allocates using cvSetData. (Inherited from DisposableObject.)
	NONMAX_SUPPRESSION
	OAST_9_16
	ptr	Data pointer (Inherited from DisposableCvObject.)
	THRESHOLD

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Reference

OpenCvSharp Namespace