Class cv::xfeatures2d::HarrisLaplaceFeatureDetector

Class implementing the Harris-Laplace feature detector as described in [214].

#include <opencv2/xfeatures2d.hpp>

Collaboration diagram for cv::xfeatures2d::HarrisLaplaceFeatureDetector:

Public Member Functions

Public Member Functions inherited from cv::Feature2D

Return	Name	Description
	~Feature2D()
void	compute(     InputArray image,     std::vector< KeyPoint > & keypoints,     OutputArray descriptors )	Computes the descriptors for a set of keypoints detected in an image (first variant) or image set (second variant).
void	compute(     InputArrayOfArrays images,     std::vector< std::vector< KeyPoint > > & keypoints,     OutputArrayOfArrays descriptors )
int	defaultNorm()
int	descriptorSize()
int	descriptorType()
void	detect(     InputArray image,     std::vector< KeyPoint > & keypoints,     InputArray mask = noArray() )	Detects keypoints in an image (first variant) or image set (second variant).
void	detect(     InputArrayOfArrays images,     std::vector< std::vector< KeyPoint > > & keypoints,     InputArrayOfArrays masks = noArray() )
void	detectAndCompute(     InputArray image,     InputArray mask,     std::vector< KeyPoint > & keypoints,     OutputArray descriptors,     bool useProvidedKeypoints = false )
bool	empty()	Return true if detector object is empty.
String	getDefaultName()
void	read(const FileNode & fn)	Reads algorithm parameters from a file storage.
void	read(const String & fileName)
void	write(const String & fileName)
void	write(FileStorage & fs)	Stores algorithm parameters in a file storage.
void	write(     FileStorage & fs,     const String & name )

Public Member Functions inherited from cv::Algorithm

Return	Name	Description
	Algorithm()
	~Algorithm()
void	clear()	Clears the algorithm state.
bool	empty()	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read.
String	getDefaultName()
void	read(const FileNode & fn)	Reads algorithm parameters from a file storage.
void	save(const String & filename)
void	write(     const Ptr< FileStorage > & fs,     const String & name = String() )
void	write(FileStorage & fs)	Stores algorithm parameters in a file storage.
void	write(     FileStorage & fs,     const String & name )

Static Public Member Functions

Static Public Member Functions inherited from cv::Algorithm

Return	Name	Description
static Ptr< _Tp >	load(     const String & filename,     const String & objname = String() )	Loads algorithm from the file.
static Ptr< _Tp >	loadFromString(     const String & strModel,     const String & objname = String() )	Loads algorithm from a String.
static Ptr< _Tp >	read(const FileNode & fn)	Reads algorithm from the file node.

Additional Inherited Members

Protected Member Functions inherited from cv::Algorithm

Return	Name	Description
void	writeFormat(FileStorage & fs)

Detailed Description

Class implementing the Harris-Laplace feature detector as described in [214].

Member Function Documentation

create()

static Ptr< HarrisLaplaceFeatureDetector > cv::xfeatures2d::HarrisLaplaceFeatureDetector::create(
int numOctaves = 6,
float corn_thresh = 0.01f,
float DOG_thresh = 0.01f,
int maxCorners = 5000,
int num_layers = 4 )

Creates a new implementation instance.

Parameters

• numOctaves — the number of octaves in the scale-space pyramid

• corn_thresh — the threshold for the Harris cornerness measure

• DOG_thresh — the threshold for the Difference-of-Gaussians scale selection

• maxCorners — the maximum number of corners to consider

• num_layers — the number of intermediate scales per octave

getCornThresh()

float cv::xfeatures2d::HarrisLaplaceFeatureDetector::getCornThresh()

getDefaultName()

String cv::xfeatures2d::HarrisLaplaceFeatureDetector::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.

getDOGThresh()

float cv::xfeatures2d::HarrisLaplaceFeatureDetector::getDOGThresh()

getMaxCorners()

int cv::xfeatures2d::HarrisLaplaceFeatureDetector::getMaxCorners()

getNumLayers()

int cv::xfeatures2d::HarrisLaplaceFeatureDetector::getNumLayers()

getNumOctaves()

int cv::xfeatures2d::HarrisLaplaceFeatureDetector::getNumOctaves()

setCornThresh()

void cv::xfeatures2d::HarrisLaplaceFeatureDetector::setCornThresh(float corn_thresh_)

setDOGThresh()

void cv::xfeatures2d::HarrisLaplaceFeatureDetector::setDOGThresh(float DOG_thresh_)

setMaxCorners()

void cv::xfeatures2d::HarrisLaplaceFeatureDetector::setMaxCorners(int maxCorners_)

setNumLayers()

void cv::xfeatures2d::HarrisLaplaceFeatureDetector::setNumLayers(int num_layers_)

setNumOctaves()

void cv::xfeatures2d::HarrisLaplaceFeatureDetector::setNumOctaves(int numOctaves_)

Source file

The documentation for this class was generated from the following file:

• opencv2/xfeatures2d.hpp