This algorithm converts images to median threshold bitmaps (1 for pixels brighter than median luminance and 0 otherwise) and than aligns the resulting bitmaps using bit operations. More...

#include <opencv2/photo.hpp>

Inheritance diagram for cv::AlignMTB:

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Collaboration diagram for cv::AlignMTB:

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Public Member Functions
virtual Point	calculateShift (InputArray img0, InputArray img1)=0
	Calculates shift between two images, i. More...

virtual void	clear ()
	Clears the algorithm state. More...

virtual void	computeBitmaps (InputArray img, OutputArray tb, OutputArray eb)=0
	Computes median threshold and exclude bitmaps of given image. More...

virtual bool	empty () const
	Returns true if the Algorithm is empty (e.g. More...

virtual bool	getCut () const =0

virtual String	getDefaultName () const
	Returns the algorithm string identifier. More...

virtual int	getExcludeRange () const =0

virtual int	getMaxBits () const =0

virtual void	process (InputArrayOfArrays src, std::vector< Mat > &dst, InputArray times, InputArray response) CV_OVERRIDE=0
	Aligns images. More...

virtual void	process (InputArrayOfArrays src, std::vector< Mat > &dst)=0
	Short version of process, that doesn't take extra arguments. More...

virtual void	read (const FileNode &fn)
	Reads algorithm parameters from a file storage. More...

virtual void	save (const String &filename) const
	Saves the algorithm to a file. More...

virtual void	setCut (bool value)=0

virtual void	setExcludeRange (int exclude_range)=0

virtual void	setMaxBits (int max_bits)=0

virtual void	shiftMat (InputArray src, OutputArray dst, const Point shift)=0
	Helper function, that shift Mat filling new regions with zeros. More...

virtual void	write (FileStorage &fs) const
	Stores algorithm parameters in a file storage. More...

void	write (const Ptr< FileStorage > &fs, const String &name=String()) const
	simplified API for language bindings This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More...

Static Public Member Functions
template<typename _Tp >
static Ptr< _Tp >	load (const String &filename, const String &objname=String())
	Loads algorithm from the file. More...

template<typename _Tp >
static Ptr< _Tp >	loadFromString (const String &strModel, const String &objname=String())
	Loads algorithm from a String. More...

template<typename _Tp >
static Ptr< _Tp >	read (const FileNode &fn)
	Reads algorithm from the file node. More...

Protected Member Functions
void	writeFormat (FileStorage &fs) const

Detailed Description

This algorithm converts images to median threshold bitmaps (1 for pixels brighter than median luminance and 0 otherwise) and than aligns the resulting bitmaps using bit operations.

It is invariant to exposure, so exposure values and camera response are not necessary.

In this implementation new image regions are filled with zeros.

For more information see [103] .

Member Function Documentation

◆ calculateShift()

virtual Point cv::AlignMTB::calculateShift	(	InputArray	img0,
		InputArray	img1
	)

pure virtual

Calculates shift between two images, i.

e. how to shift the second image to correspond it with the first.

Parameters

img0	first image
img1	second image

◆ clear()

virtual void cv::Algorithm::clear ( )

inlinevirtualinherited

Clears the algorithm state.

Reimplemented in cv::FlannBasedMatcher, and cv::DescriptorMatcher.

◆ computeBitmaps()

virtual void cv::AlignMTB::computeBitmaps	(	InputArray	img,
		OutputArray	tb,
		OutputArray	eb
	)

pure virtual

Computes median threshold and exclude bitmaps of given image.

Parameters

img	input image
tb	median threshold bitmap
eb	exclude bitmap

◆ empty()

virtual bool cv::Algorithm::empty ( ) const

inlinevirtualinherited

Returns true if the Algorithm is empty (e.g.

in the very beginning or after unsuccessful read

Reimplemented in cv::DescriptorMatcher, cv::ml::StatModel, cv::Feature2D, and cv::BaseCascadeClassifier.

◆ getCut()

virtual bool cv::AlignMTB::getCut ( ) const

pure virtual

◆ getDefaultName()

virtual String cv::Algorithm::getDefaultName ( ) const

virtualinherited

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 in cv::AKAZE, cv::KAZE, cv::SimpleBlobDetector, cv::GFTTDetector, cv::AgastFeatureDetector, cv::FastFeatureDetector, cv::MSER, cv::ORB, cv::BRISK, and cv::Feature2D.

◆ getExcludeRange()

virtual int cv::AlignMTB::getExcludeRange ( ) const

pure virtual

◆ getMaxBits()

virtual int cv::AlignMTB::getMaxBits ( ) const

pure virtual

◆ load()

template<typename _Tp >

static Ptr<_Tp> cv::Algorithm::load	(	const String &	filename,
		const String &	objname = `String()`
	)

inlinestaticinherited

Loads algorithm from the file.

Parameters

filename	Name of the file to read.
objname	The optional name of the node to read (if empty, the first top-level node will be used)

This is static template method of Algorithm. It's usage is following (in the case of SVM):

Ptr<SVM> svm = Algorithm::load<SVM>("my_svm_model.xml");

In order to make this method work, the derived class must overwrite Algorithm::read(const FileNode& fn).

References CV_Assert, cv::FileNode::empty(), cv::FileStorage::getFirstTopLevelNode(), cv::FileStorage::isOpened(), and cv::FileStorage::READ.

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◆ loadFromString()

template<typename _Tp >

static Ptr<_Tp> cv::Algorithm::loadFromString	(	const String &	strModel,
		const String &	objname = `String()`
	)

inlinestaticinherited

Loads algorithm from a String.

Parameters

strModel	The string variable containing the model you want to load.
objname	The optional name of the node to read (if empty, the first top-level node will be used)

This is static template method of Algorithm. It's usage is following (in the case of SVM):

Ptr<SVM> svm = Algorithm::loadFromString<SVM>(myStringModel);

References CV_WRAP, cv::FileNode::empty(), cv::FileStorage::getFirstTopLevelNode(), cv::FileStorage::MEMORY, and cv::FileStorage::READ.

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◆ process() [1/2]

virtual void cv::AlignMTB::process	(	InputArrayOfArrays	src,
		std::vector< Mat > &	dst,
		InputArray	times,
		InputArray	response
	)

pure virtual

Aligns images.

Parameters

src	vector of input images
dst	vector of aligned images
times	vector of exposure time values for each image
response	256x1 matrix with inverse camera response function for each pixel value, it should have the same number of channels as images.

Implements cv::AlignExposures.

◆ process() [2/2]

virtual void cv::AlignMTB::process	(	InputArrayOfArrays	src,
		std::vector< Mat > &	dst
	)

pure virtual

Short version of process, that doesn't take extra arguments.

Parameters

src	vector of input images
dst	vector of aligned images

◆ read() [1/2]

virtual void cv::Algorithm::read ( const FileNode & fn )

inlinevirtualinherited

Reads algorithm parameters from a file storage.

Reimplemented in cv::FlannBasedMatcher, cv::DescriptorMatcher, and cv::Feature2D.

◆ read() [2/2]

template<typename _Tp >

static Ptr<_Tp> cv::Algorithm::read ( const FileNode & fn )

inlinestaticinherited

Reads algorithm from the file node.

This is static template method of Algorithm. It's usage is following (in the case of SVM):

cv::FileStorage fsRead("example.xml", FileStorage::READ);

Ptr<SVM> svm = Algorithm::read<SVM>(fsRead.root());

In order to make this method work, the derived class must overwrite Algorithm::read(const FileNode& fn) and also have static create() method without parameters (or with all the optional parameters)

◆ save()

virtual void cv::Algorithm::save ( const String & filename ) const

virtualinherited

Saves the algorithm to a file.

In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).

◆ setCut()

virtual void cv::AlignMTB::setCut ( bool value )

pure virtual

◆ setExcludeRange()

virtual void cv::AlignMTB::setExcludeRange ( int exclude_range )

pure virtual

◆ setMaxBits()

virtual void cv::AlignMTB::setMaxBits ( int max_bits )

pure virtual

◆ shiftMat()

virtual void cv::AlignMTB::shiftMat	(	InputArray	src,
		OutputArray	dst,
		const Point	shift
	)

pure virtual

Helper function, that shift Mat filling new regions with zeros.

Parameters

src	input image
dst	result image
shift	shift value

◆ write() [1/2]

virtual void cv::Algorithm::write ( FileStorage & fs ) const

inlinevirtualinherited

Stores algorithm parameters in a file storage.

Reimplemented in cv::FlannBasedMatcher, cv::DescriptorMatcher, and cv::Feature2D.

References CV_WRAP.

Referenced by cv::Feature2D::write(), and cv::DescriptorMatcher::write().

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◆ write() [2/2]

void cv::Algorithm::write	(	const Ptr< FileStorage > &	fs,
		const String &	name = `String()`
	)		const

inherited

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

◆ writeFormat()

void cv::Algorithm::writeFormat ( FileStorage & fs ) const

protectedinherited

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

opencv2/photo.hpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation

◆ calculateShift()

◆ clear()

◆ computeBitmaps()

◆ empty()

◆ getCut()

◆ getDefaultName()

◆ getExcludeRange()

◆ getMaxBits()

◆ load()

◆ loadFromString()

◆ process() [1/2]

◆ process() [2/2]

◆ read() [1/2]

◆ read() [2/2]

◆ save()

◆ setCut()

◆ setExcludeRange()

◆ setMaxBits()

◆ shiftMat()

◆ write() [1/2]

◆ write() [2/2]

◆ writeFormat()