#include <features2d.hpp>

Inheritance diagram for cv::FREAK:

Classes
struct	DescriptionPair

struct	OrientationPair

struct	PatternPoint

Public Types
enum	{ NB_SCALES = 64, NB_PAIRS = 512, NB_ORIENPAIRS = 45 }

Public Types inherited from cv::Algorithm
typedef Algorithm (	Constructor) (void)

typedef int(Algorithm::*	Getter) () const

typedef void(Algorithm::*	Setter) (int)

Public Member Functions
	FREAK (bool orientationNormalized=true, bool scaleNormalized=true, float patternScale=22.0f, int nOctaves=4, const vector< int > &selectedPairs=vector< int >())

	FREAK (const FREAK &rhs)

FREAK &	operator= (const FREAK &)

virtual	~FREAK ()

virtual int	descriptorSize () const

virtual int	descriptorType () const

vector< int >	selectPairs (const vector< Mat > &images, vector< vector< KeyPoint > > &keypoints, const double corrThresh=0.7, bool verbose=true)

AlgorithmInfo *	info () const

Public Member Functions inherited from cv::DescriptorExtractor
virtual	~DescriptorExtractor ()

void	compute (const Mat &image, CV_OUT CV_IN_OUT vector< KeyPoint > &keypoints, CV_OUT Mat &descriptors) const

void	compute (const vector< Mat > &images, vector< vector< KeyPoint > > &keypoints, vector< Mat > &descriptors) const

virtual bool	empty () const

Public Member Functions inherited from cv::Algorithm
	Algorithm ()

virtual	~Algorithm ()

string	name () const

template<typename _Tp >
ParamType< _Tp >::member_type	get (const string &name) const

template<typename _Tp >
ParamType< _Tp >::member_type	get (const char *name) const

int	getInt (const string &name) const

double	getDouble (const string &name) const

bool	getBool (const string &name) const

string	getString (const string &name) const

Mat	getMat (const string &name) const

vector< Mat >	getMatVector (const string &name) const

Ptr< Algorithm >	getAlgorithm (const string &name) const

void	set (const string &name, int value)

void	set (const string &name, double value)

void	set (const string &name, bool value)

void	set (const string &name, const string &value)

void	set (const string &name, const Mat &value)

void	set (const string &name, const vector< Mat > &value)

void	set (const string &name, const Ptr< Algorithm > &value)

template<typename _Tp >
void	set (const string &name, const Ptr< _Tp > &value)

void	setInt (const string &name, int value)

void	setDouble (const string &name, double value)

void	setBool (const string &name, bool value)

void	setString (const string &name, const string &value)

void	setMat (const string &name, const Mat &value)

void	setMatVector (const string &name, const vector< Mat > &value)

void	setAlgorithm (const string &name, const Ptr< Algorithm > &value)

template<typename _Tp >
void	setAlgorithm (const string &name, const Ptr< _Tp > &value)

void	set (const char *name, int value)

void	set (const char *name, double value)

void	set (const char *name, bool value)

void	set (const char *name, const string &value)

void	set (const char *name, const Mat &value)

void	set (const char *name, const vector< Mat > &value)

void	set (const char *name, const Ptr< Algorithm > &value)

template<typename _Tp >
void	set (const char *name, const Ptr< _Tp > &value)

void	setInt (const char *name, int value)

void	setDouble (const char *name, double value)

void	setBool (const char *name, bool value)

void	setString (const char *name, const string &value)

void	setMat (const char *name, const Mat &value)

void	setMatVector (const char *name, const vector< Mat > &value)

void	setAlgorithm (const char *name, const Ptr< Algorithm > &value)

template<typename _Tp >
void	setAlgorithm (const char *name, const Ptr< _Tp > &value)

string	paramHelp (const string &name) const

int	paramType (const char *name) const

int	paramType (const string &name) const

void	getParams (CV_OUT vector< string > &names) const

virtual void	write (FileStorage &fs) const

virtual void	read (const FileNode &fn)

Protected Member Functions
virtual void	computeImpl (const Mat &image, vector< KeyPoint > &keypoints, Mat &descriptors) const

void	buildPattern ()

uchar	meanIntensity (const Mat &image, const Mat &integral, const float kp_x, const float kp_y, const unsigned int scale, const unsigned int rot, const unsigned int point) const

Protected Attributes
bool	orientationNormalized

bool	scaleNormalized

double	patternScale

int	nOctaves

bool	extAll

double	patternScale0

int	nOctaves0

vector< int >	selectedPairs0

vector< PatternPoint >	patternLookup

int	patternSizes [NB_SCALES]

DescriptionPair	descriptionPairs [NB_PAIRS]

OrientationPair	orientationPairs [NB_ORIENPAIRS]

Additional Inherited Members
Static Public Member Functions inherited from cv::DescriptorExtractor
static Ptr< DescriptorExtractor >	create (const string &descriptorExtractorType)

Static Public Member Functions inherited from cv::Algorithm
static void	getList (CV_OUT vector< string > &algorithms)

static Ptr< Algorithm >	_create (const string &name)

template<typename _Tp >
static Ptr< _Tp >	create (const string &name)

Static Protected Member Functions inherited from cv::DescriptorExtractor
static void	removeBorderKeypoints (vector< KeyPoint > &keypoints, Size imageSize, int borderSize)

Detailed Description

FREAK implementation

Member Enumeration Documentation

§ anonymous enum

anonymous enum

Enumerator
NB_SCALES
NB_PAIRS
NB_ORIENPAIRS

Constructor & Destructor Documentation

§ FREAK() [1/2]

cv::FREAK::FREAK	(	bool	orientationNormalized = `true`,
		bool	scaleNormalized = `true`,
		float	patternScale = `22.0f`,
		int	nOctaves = `4`,
		const vector< int > &	selectedPairs = `vector< int >()`
	)

explicit

Constructor

Parameters

orientationNormalized	enable orientation normalization
scaleNormalized	enable scale normalization
patternScale	scaling of the description pattern
nOctaves	number of octaves covered by the detected keypoints
selectedPairs	(optional) user defined selected pairs

§ FREAK() [2/2]

cv::FREAK::FREAK ( const FREAK & rhs )

§ ~FREAK()

virtual cv::FREAK::~FREAK ( )

virtual

Member Function Documentation

§ buildPattern()

void cv::FREAK::buildPattern ( )

protected

§ computeImpl()

virtual void cv::FREAK::computeImpl	(	const Mat &	image,
		vector< KeyPoint > &	keypoints,
		Mat &	descriptors
	)		const

protectedvirtual

Implements cv::DescriptorExtractor.

§ descriptorSize()

virtual int cv::FREAK::descriptorSize ( ) const

virtual

returns the descriptor length in bytes

Implements cv::DescriptorExtractor.

§ descriptorType()

virtual int cv::FREAK::descriptorType ( ) const

virtual

returns the descriptor type

Implements cv::DescriptorExtractor.

§ info()

AlgorithmInfo* cv::FREAK::info ( ) const

virtual

Reimplemented from cv::Algorithm.

§ meanIntensity()

uchar cv::FREAK::meanIntensity	(	const Mat &	image,
		const Mat &	integral,
		const float	kp_x,
		const float	kp_y,
		const unsigned int	scale,
		const unsigned int	rot,
		const unsigned int	point
	)		const

protected

§ operator=()

FREAK& cv::FREAK::operator= ( const FREAK & )

§ selectPairs()

vector<int> cv::FREAK::selectPairs	(	const vector< Mat > &	images,
		vector< vector< KeyPoint > > &	keypoints,
		const double	corrThresh = `0.7`,
		bool	verbose = `true`
	)

select the 512 "best description pairs"

Parameters

images	grayscale images set
keypoints	set of detected keypoints
corrThresh	correlation threshold
verbose	print construction information

Returns: list of best pair indexes

Member Data Documentation

§ descriptionPairs

DescriptionPair cv::FREAK::descriptionPairs[NB_PAIRS]

protected

§ extAll

bool cv::FREAK::extAll

protected

§ nOctaves

int cv::FREAK::nOctaves

protected

§ nOctaves0

int cv::FREAK::nOctaves0

protected

§ orientationNormalized

bool cv::FREAK::orientationNormalized

protected

§ orientationPairs

OrientationPair cv::FREAK::orientationPairs[NB_ORIENPAIRS]

protected

§ patternLookup

vector<PatternPoint> cv::FREAK::patternLookup

protected

§ patternScale

double cv::FREAK::patternScale

protected

§ patternScale0

double cv::FREAK::patternScale0

protected

§ patternSizes

int cv::FREAK::patternSizes[NB_SCALES]

protected

§ scaleNormalized

bool cv::FREAK::scaleNormalized

protected

§ selectedPairs0

vector<int> cv::FREAK::selectedPairs0

protected

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

features2d/include/opencv2/features2d/features2d.hpp

Classes

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

§ anonymous enum

Constructor & Destructor Documentation

§ FREAK() [1/2]

§ FREAK() [2/2]

§ ~FREAK()

Member Function Documentation

§ buildPattern()

§ computeImpl()

§ descriptorSize()

§ descriptorType()

§ info()

§ meanIntensity()

§ operator=()

§ selectPairs()

Member Data Documentation

§ descriptionPairs

§ extAll

§ nOctaves

§ nOctaves0

§ orientationNormalized

§ orientationPairs

§ patternLookup

§ patternScale

§ patternScale0

§ patternSizes

§ scaleNormalized

§ selectedPairs0