OpenCVForUnity.Xfeatures2dModule.LATCH Class Reference

Inheritance diagram for OpenCVForUnity.Xfeatures2dModule.LATCH:

Public Member Functions
void	setBytes (int bytes)
int	getBytes ()
void	setRotationInvariance (bool rotationInvariance)
bool	getRotationInvariance ()
void	setHalfSSDsize (int half_ssd_size)
int	getHalfSSDsize ()
void	setSigma (double sigma)
double	getSigma ()
override string	getDefaultName ()
Public Member Functions inherited from OpenCVForUnity.Features2dModule.Feature2D
void	detect (Mat image, MatOfKeyPoint keypoints, Mat mask)
	Detects keypoints in an image (first variant) or image set (second variant). More...
void	detect (Mat image, MatOfKeyPoint keypoints)
	Detects keypoints in an image (first variant) or image set (second variant). More...
void	detect (List< Mat > images, List< MatOfKeyPoint > keypoints, List< Mat > masks)
void	detect (List< Mat > images, List< MatOfKeyPoint > keypoints)
void	compute (Mat image, MatOfKeyPoint keypoints, Mat descriptors)
	Computes the descriptors for a set of keypoints detected in an image (first variant) or image set (second variant). More...
void	compute (List< Mat > images, List< MatOfKeyPoint > keypoints, List< Mat > descriptors)
void	detectAndCompute (Mat image, Mat mask, MatOfKeyPoint keypoints, Mat descriptors, bool useProvidedKeypoints)
void	detectAndCompute (Mat image, Mat mask, MatOfKeyPoint keypoints, Mat descriptors)
int	descriptorSize ()
int	descriptorType ()
int	defaultNorm ()
void	write (string fileName)
void	read (string fileName)
override bool	empty ()
	Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read. More...
Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
IntPtr	getNativeObjAddr ()
virtual void	clear ()
	Clears the algorithm state. More...
void	save (string filename)
Public Member Functions inherited from OpenCVForUnity.DisposableObject
void	Dispose ()
void	ThrowIfDisposed ()

Static Public Member Functions
static new LATCH	__fromPtr__ (IntPtr addr)
static LATCH	create (int bytes, bool rotationInvariance, int half_ssd_size, double sigma)
static LATCH	create (int bytes, bool rotationInvariance, int half_ssd_size)
static LATCH	create (int bytes, bool rotationInvariance)
static LATCH	create (int bytes)
static LATCH	create ()
Static Public Member Functions inherited from OpenCVForUnity.Features2dModule.Feature2D
static new Feature2D	__fromPtr__ (IntPtr addr)
Static Public Member Functions inherited from OpenCVForUnity.CoreModule.Algorithm
static Algorithm	__fromPtr__ (IntPtr addr)
Static Public Member Functions inherited from OpenCVForUnity.DisposableObject
static IntPtr	ThrowIfNullIntPtr (IntPtr ptr)

Protected Member Functions
override void	Dispose (bool disposing)
Protected Member Functions inherited from OpenCVForUnity.DisposableOpenCVObject
	DisposableOpenCVObject ()
	DisposableOpenCVObject (IntPtr ptr)
	DisposableOpenCVObject (bool isEnabledDispose)
	DisposableOpenCVObject (IntPtr ptr, bool isEnabledDispose)
Protected Member Functions inherited from OpenCVForUnity.DisposableObject
	DisposableObject ()
	DisposableObject (bool isEnabledDispose)

Additional Inherited Members
Properties inherited from OpenCVForUnity.DisposableObject
bool	IsDisposed [get, protected set]
bool	IsEnabledDispose [get, set]

Detailed Description

latch Class for computing the LATCH descriptor. If you find this code useful, please add a reference to the following paper in your work: Gil Levi and Tal Hassner, "LATCH: Learned Arrangements of Three Patch Codes", arXiv preprint arXiv:1501.03719, 15 Jan. 2015

LATCH is a binary descriptor based on learned comparisons of triplets of image patches.

bytes is the size of the descriptor - can be 64, 32, 16, 8, 4, 2 or 1 rotationInvariance - whether or not the descriptor should compansate for orientation changes. half_ssd_size - the size of half of the mini-patches size. For example, if we would like to compare triplets of patches of size 7x7x then the half_ssd_size should be (7-1)/2 = 3. sigma - sigma value for GaussianBlur smoothing of the source image. Source image will be used without smoothing in case sigma value is 0.

Note: the descriptor can be coupled with any keypoint extractor. The only demand is that if you use set rotationInvariance = True then you will have to use an extractor which estimates the patch orientation (in degrees). Examples for such extractors are ORB and SIFT.

Note: a complete example can be found under /samples/cpp/tutorial_code/xfeatures2D/latch_match.cpp

Member Function Documentation

__fromPtr__()

static new LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.__fromPtr__ ( IntPtr  addr )

static

create() [1/5]

static LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.create ( int  bytes, bool  rotationInvariance, int  half_ssd_size, double  sigma  )

static

create() [2/5]

static LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.create ( int  bytes, bool  rotationInvariance, int  half_ssd_size  )

static

create() [3/5]

static LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.create ( int  bytes, bool  rotationInvariance  )

static

create() [4/5]

static LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.create ( int  bytes )

static

create() [5/5]

static LATCH OpenCVForUnity.Xfeatures2dModule.LATCH.create ( )

static

Dispose()

override void OpenCVForUnity.Xfeatures2dModule.LATCH.Dispose ( bool  disposing )

protectedvirtual

Reimplemented from OpenCVForUnity.Features2dModule.Feature2D.

getBytes()

int OpenCVForUnity.Xfeatures2dModule.LATCH.getBytes

(

)

getDefaultName()

override string OpenCVForUnity.Xfeatures2dModule.LATCH.getDefaultName ( )

virtual

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.

Reimplemented from OpenCVForUnity.Features2dModule.Feature2D.

getHalfSSDsize()

int OpenCVForUnity.Xfeatures2dModule.LATCH.getHalfSSDsize

(

)

getRotationInvariance()

bool OpenCVForUnity.Xfeatures2dModule.LATCH.getRotationInvariance

(

)

getSigma()

double OpenCVForUnity.Xfeatures2dModule.LATCH.getSigma

(

)

setBytes()

void OpenCVForUnity.Xfeatures2dModule.LATCH.setBytes

(

int

bytes

)

setHalfSSDsize()

void OpenCVForUnity.Xfeatures2dModule.LATCH.setHalfSSDsize

(

int

half_ssd_size

)

setRotationInvariance()

void OpenCVForUnity.Xfeatures2dModule.LATCH.setRotationInvariance

(

bool

rotationInvariance

)

setSigma()

void OpenCVForUnity.Xfeatures2dModule.LATCH.setSigma

(

double

sigma

)

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

• OpenCVForUnity/Assets/OpenCVForUnity/org/opencv_contrib/xfeatures2d/LATCH.cs