#include <opencv2/core/mat.hpp>

Collaboration diagram for cv::UMat:

[legend]

Public Types
enum	{ MAGIC_VAL = 0x42FF0000, AUTO_STEP = 0, CONTINUOUS_FLAG = CV_MAT_CONT_FLAG, SUBMATRIX_FLAG = CV_SUBMAT_FLAG }

enum	{ MAGIC_MASK = 0xFFFF0000, TYPE_MASK = 0x00000FFF, DEPTH_MASK = 7 }

Public Member Functions
	UMat (UMatUsageFlags usageFlags=USAGE_DEFAULT)
	default constructor More...

	UMat (int rows, int cols, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)
	constructs 2D matrix of the specified size and type More...

	UMat (Size size, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)

	UMat (int rows, int cols, int type, const Scalar &s, UMatUsageFlags usageFlags=USAGE_DEFAULT)
	constucts 2D matrix and fills it with the specified value _s. More...

	UMat (Size size, int type, const Scalar &s, UMatUsageFlags usageFlags=USAGE_DEFAULT)

	UMat (int ndims, const int *sizes, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)
	constructs n-dimensional matrix More...

	UMat (int ndims, const int *sizes, int type, const Scalar &s, UMatUsageFlags usageFlags=USAGE_DEFAULT)

	UMat (const UMat &m)
	copy constructor More...

	UMat (const UMat &m, const Range &rowRange, const Range &colRange=Range::all())
	creates a matrix header for a part of the bigger matrix More...

	UMat (const UMat &m, const Rect &roi)

	UMat (const UMat &m, const Range *ranges)

	UMat (const UMat &m, const std::vector< Range > &ranges)

template<typename _Tp >
	UMat (const std::vector< _Tp > &vec, bool copyData=false)
	builds matrix from std::vector with or without copying the data More...

template<typename _Tp , int n>
	UMat (const Vec< _Tp, n > &vec, bool copyData=true)
	builds matrix from cv::Vec; the data is copied by default More...

template<typename _Tp , int m, int n>
	UMat (const Matx< _Tp, m, n > &mtx, bool copyData=true)
	builds matrix from cv::Matx; the data is copied by default More...

template<typename _Tp >
	UMat (const Point_< _Tp > &pt, bool copyData=true)
	builds matrix from a 2D point More...

template<typename _Tp >
	UMat (const Point3_< _Tp > &pt, bool copyData=true)
	builds matrix from a 3D point More...

template<typename _Tp >
	UMat (const MatCommaInitializer_< _Tp > &commaInitializer)
	builds matrix from comma initializer More...

	UMat (UMat &&m)

	~UMat ()
	destructor - calls release() More...

void	addref ()
	increases the reference counter; use with care to avoid memleaks More...

UMat &	adjustROI (int dtop, int dbottom, int dleft, int dright)
	moves/resizes the current matrix ROI inside the parent matrix. More...

void	assignTo (UMat &m, int type=-1) const

int	channels () const
	returns element type, similar to CV_MAT_CN(cvmat->type) More...

int	checkVector (int elemChannels, int depth=-1, bool requireContinuous=true) const
	returns N if the matrix is 1-channel (N x ptdim) or ptdim-channel (1 x N) or (N x 1); negative number otherwise More...

UMat	clone () const CV_NODISCARD
	returns deep copy of the matrix, i.e. the data is copied More...

UMat	col (int x) const
	returns a new matrix header for the specified column More...

UMat	colRange (int startcol, int endcol) const
	... for the specified column span More...

UMat	colRange (const Range &r) const

void	convertTo (OutputArray m, int rtype, double alpha=1, double beta=0) const
	converts matrix to another datatype with optional scaling. See cvConvertScale. More...

void	copySize (const UMat &m)
	internal use function; properly re-allocates _size, _step arrays More...

void	copyTo (OutputArray m) const
	copies the matrix content to "m". More...

void	copyTo (OutputArray m, InputArray mask) const
	copies those matrix elements to "m" that are marked with non-zero mask elements. More...

void	create (int rows, int cols, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)
	allocates new matrix data unless the matrix already has specified size and type. More...

void	create (Size size, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)

void	create (int ndims, const int *sizes, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)

void	create (const std::vector< int > &sizes, int type, UMatUsageFlags usageFlags=USAGE_DEFAULT)

void	deallocate ()
	deallocates the matrix data More...

int	depth () const
	returns element type, similar to CV_MAT_DEPTH(cvmat->type) More...

UMat	diag (int d=0) const
	... More...

double	dot (InputArray m) const
	computes dot-product More...

size_t	elemSize () const
	returns element size in bytes, More...

size_t	elemSize1 () const
	returns the size of element channel in bytes. More...

bool	empty () const
	returns true if matrix data is NULL More...

Mat	getMat (AccessFlag flags) const

void *	handle (AccessFlag accessFlags) const
	Returns the OpenCL buffer handle on which UMat operates on. More...

UMat	inv (int method=DECOMP_LU) const
	matrix inversion by means of matrix expressions More...

bool	isContinuous () const
	returns true iff the matrix data is continuous More...

bool	isSubmatrix () const
	returns true if the matrix is a submatrix of another matrix More...

void	locateROI (Size &wholeSize, Point &ofs) const
	locates matrix header within a parent matrix. See below More...

UMat	mul (InputArray m, double scale=1) const
	per-element matrix multiplication by means of matrix expressions More...

void	ndoffset (size_t *ofs) const

UMat	operator() (Range rowRange, Range colRange) const
	extracts a rectangular sub-matrix More...

UMat	operator() (const Rect &roi) const

UMat	operator() (const Range *ranges) const

UMat	operator() (const std::vector< Range > &ranges) const

UMat &	operator= (const UMat &m)
	assignment operators More...

UMat &	operator= (const Scalar &s)
	sets every matrix element to s More...

UMat &	operator= (UMat &&m)

void	release ()
	decreases reference counter; More...

UMat	reshape (int cn, int rows=0) const
	creates alternative matrix header for the same data, with different More...

UMat	reshape (int cn, int newndims, const int *newsz) const

UMat	row (int y) const
	returns a new matrix header for the specified row More...

UMat	rowRange (int startrow, int endrow) const
	... for the specified row span More...

UMat	rowRange (const Range &r) const

UMat &	setTo (InputArray value, InputArray mask=noArray())
	sets some of the matrix elements to s, according to the mask More...

size_t	step1 (int i=0) const
	returns step/elemSize1() More...

UMat	t () const
	matrix transposition by means of matrix expressions More...

size_t	total () const
	returns the total number of matrix elements More...

int	type () const
	returns element type, similar to CV_MAT_TYPE(cvmat->type) More...

void	updateContinuityFlag ()
	internal use method: updates the continuity flag More...

Static Public Member Functions
static UMat	diag (const UMat &d)
	constructs a square diagonal matrix which main diagonal is vector "d" More...

static UMat	eye (int rows, int cols, int type)

static UMat	eye (Size size, int type)

static MatAllocator *	getStdAllocator ()
	and the standard allocator More...

static UMat	ones (int rows, int cols, int type)

static UMat	ones (Size size, int type)

static UMat	ones (int ndims, const int *sz, int type)

static UMat	zeros (int rows, int cols, int type)
	Matlab-style matrix initialization. More...

static UMat	zeros (Size size, int type)

static UMat	zeros (int ndims, const int *sz, int type)

Public Attributes
MatAllocator *	allocator
	custom allocator More...

int	cols

int	dims
	the matrix dimensionality, >= 2 More...

int	flags
	includes several bit-fields: More...

size_t	offset

int	rows
	the number of rows and columns or (-1, -1) when the matrix has more than 2 dimensions More...

MatSize	size

MatStep	step

UMatData *	u

UMatUsageFlags	usageFlags

Detailed Description

Todo:: document

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
MAGIC_VAL
AUTO_STEP
CONTINUOUS_FLAG
SUBMATRIX_FLAG

◆ anonymous enum

anonymous enum

Enumerator
MAGIC_MASK
TYPE_MASK
DEPTH_MASK

Constructor & Destructor Documentation

◆ UMat() [1/19]

cv::UMat::UMat ( UMatUsageFlags usageFlags = USAGE_DEFAULT )

default constructor

◆ UMat() [2/19]

cv::UMat::UMat	(	int	rows,
		int	cols,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

constructs 2D matrix of the specified size and type

◆ UMat() [3/19]

cv::UMat::UMat	(	Size	size,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ UMat() [4/19]

cv::UMat::UMat	(	int	rows,
		int	cols,
		int	type,
		const Scalar &	s,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

constucts 2D matrix and fills it with the specified value _s.

◆ UMat() [5/19]

cv::UMat::UMat	(	Size	size,
		int	type,
		const Scalar &	s,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ UMat() [6/19]

cv::UMat::UMat	(	int	ndims,
		const int *	sizes,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

constructs n-dimensional matrix

◆ UMat() [7/19]

cv::UMat::UMat	(	int	ndims,
		const int *	sizes,
		int	type,
		const Scalar &	s,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ UMat() [8/19]

cv::UMat::UMat ( const UMat & m )

copy constructor

◆ UMat() [9/19]

cv::UMat::UMat	(	const UMat &	m,
		const Range &	rowRange,
		const Range &	colRange = `Range::all()`
	)

creates a matrix header for a part of the bigger matrix

◆ UMat() [10/19]

cv::UMat::UMat	(	const UMat &	m,
		const Rect &	roi
	)

◆ UMat() [11/19]

cv::UMat::UMat	(	const UMat &	m,
		const Range *	ranges
	)

◆ UMat() [12/19]

cv::UMat::UMat	(	const UMat &	m,
		const std::vector< Range > &	ranges
	)

◆ UMat() [13/19]

template<typename _Tp >

cv::UMat::UMat	(	const std::vector< _Tp > &	vec,
		bool	copyData = `false`
	)

explicit

builds matrix from std::vector with or without copying the data

◆ UMat() [14/19]

template<typename _Tp , int n>

cv::UMat::UMat	(	const Vec< _Tp, n > &	vec,
		bool	copyData = `true`
	)

explicit

builds matrix from cv::Vec; the data is copied by default

◆ UMat() [15/19]

template<typename _Tp , int m, int n>

cv::UMat::UMat	(	const Matx< _Tp, m, n > &	mtx,
		bool	copyData = `true`
	)

explicit

builds matrix from cv::Matx; the data is copied by default

◆ UMat() [16/19]

template<typename _Tp >

cv::UMat::UMat	(	const Point_< _Tp > &	pt,
		bool	copyData = `true`
	)

explicit

builds matrix from a 2D point

◆ UMat() [17/19]

template<typename _Tp >

cv::UMat::UMat	(	const Point3_< _Tp > &	pt,
		bool	copyData = `true`
	)

explicit

builds matrix from a 3D point

◆ UMat() [18/19]

template<typename _Tp >

cv::UMat::UMat ( const MatCommaInitializer_< _Tp > & commaInitializer )

explicit

builds matrix from comma initializer

◆ ~UMat()

cv::UMat::~UMat ( )

destructor - calls release()

◆ UMat() [19/19]

cv::UMat::UMat ( UMat && m )

Member Function Documentation

◆ addref()

void cv::UMat::addref ( )

increases the reference counter; use with care to avoid memleaks

◆ adjustROI()

UMat& cv::UMat::adjustROI	(	int	dtop,
		int	dbottom,
		int	dleft,
		int	dright
	)

moves/resizes the current matrix ROI inside the parent matrix.

◆ assignTo()

void cv::UMat::assignTo	(	UMat &	m,
		int	type = `-1`
	)		const

◆ channels()

int cv::UMat::channels ( ) const

returns element type, similar to CV_MAT_CN(cvmat->type)

◆ checkVector()

int cv::UMat::checkVector	(	int	elemChannels,
		int	depth = `-1`,
		bool	requireContinuous = `true`
	)		const

returns N if the matrix is 1-channel (N x ptdim) or ptdim-channel (1 x N) or (N x 1); negative number otherwise

◆ clone()

UMat cv::UMat::clone ( ) const

returns deep copy of the matrix, i.e. the data is copied

Referenced by cv::Stitcher::setMatchingMask().

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◆ col()

UMat cv::UMat::col ( int x ) const

returns a new matrix header for the specified column

◆ colRange() [1/2]

UMat cv::UMat::colRange	(	int	startcol,
		int	endcol
	)		const

... for the specified column span

◆ colRange() [2/2]

UMat cv::UMat::colRange ( const Range & r ) const

◆ convertTo()

void cv::UMat::convertTo	(	OutputArray	m,
		int	rtype,
		double	alpha = `1`,
		double	beta = `0`
	)		const

converts matrix to another datatype with optional scaling. See cvConvertScale.

◆ copySize()

void cv::UMat::copySize ( const UMat & m )

internal use function; properly re-allocates _size, _step arrays

◆ copyTo() [1/2]

void cv::UMat::copyTo ( OutputArray m ) const

copies the matrix content to "m".

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

◆ copyTo() [2/2]

void cv::UMat::copyTo	(	OutputArray	m,
		InputArray	mask
	)		const

copies those matrix elements to "m" that are marked with non-zero mask elements.

◆ create() [1/4]

void cv::UMat::create	(	int	rows,
		int	cols,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

allocates new matrix data unless the matrix already has specified size and type.

◆ create() [2/4]

void cv::UMat::create	(	Size	size,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ create() [3/4]

void cv::UMat::create	(	int	ndims,
		const int *	sizes,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ create() [4/4]

void cv::UMat::create	(	const std::vector< int > &	sizes,
		int	type,
		UMatUsageFlags	usageFlags = `USAGE_DEFAULT`
	)

◆ deallocate()

void cv::UMat::deallocate ( )

deallocates the matrix data

◆ depth()

int cv::UMat::depth ( ) const

returns element type, similar to CV_MAT_DEPTH(cvmat->type)

◆ diag() [1/2]

UMat cv::UMat::diag ( int d = 0 ) const

...

for the specified diagonal (d=0 - the main diagonal, >0 - a diagonal from the upper half, <0 - a diagonal from the lower half)

◆ diag() [2/2]

static UMat cv::UMat::diag ( const UMat & d )

static

constructs a square diagonal matrix which main diagonal is vector "d"

◆ dot()

double cv::UMat::dot ( InputArray m ) const

computes dot-product

◆ elemSize()

size_t cv::UMat::elemSize ( ) const

returns element size in bytes,

◆ elemSize1()

size_t cv::UMat::elemSize1 ( ) const

returns the size of element channel in bytes.

◆ empty()

bool cv::UMat::empty ( ) const

returns true if matrix data is NULL

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

◆ eye() [1/2]

static UMat cv::UMat::eye	(	int	rows,
		int	cols,
		int	type
	)

static

◆ eye() [2/2]

static UMat cv::UMat::eye	(	Size	size,
		int	type
	)

static

◆ getMat()

Mat cv::UMat::getMat ( AccessFlag flags ) const

Examples:: samples/tapi/squares.cpp.

◆ getStdAllocator()

static MatAllocator* cv::UMat::getStdAllocator ( )

static

and the standard allocator

◆ handle()

void* cv::UMat::handle ( AccessFlag accessFlags ) const

Returns the OpenCL buffer handle on which UMat operates on.

The UMat instance should be kept alive during the use of the handle to prevent the buffer to be returned to the OpenCV buffer pool.

◆ inv()

UMat cv::UMat::inv ( int method = DECOMP_LU ) const

matrix inversion by means of matrix expressions

◆ isContinuous()

bool cv::UMat::isContinuous ( ) const

returns true iff the matrix data is continuous

◆ isSubmatrix()

bool cv::UMat::isSubmatrix ( ) const

returns true if the matrix is a submatrix of another matrix

◆ locateROI()

void cv::UMat::locateROI	(	Size &	wholeSize,
		Point &	ofs
	)		const

locates matrix header within a parent matrix. See below

◆ mul()

UMat cv::UMat::mul	(	InputArray	m,
		double	scale = `1`
	)		const

per-element matrix multiplication by means of matrix expressions

◆ ndoffset()

void cv::UMat::ndoffset ( size_t * ofs ) const

◆ ones() [1/3]

static UMat cv::UMat::ones	(	int	rows,
		int	cols,
		int	type
	)

static

◆ ones() [2/3]

static UMat cv::UMat::ones	(	Size	size,
		int	type
	)

static

◆ ones() [3/3]

static UMat cv::UMat::ones	(	int	ndims,
		const int *	sz,
		int	type
	)

static

◆ operator()() [1/4]

UMat cv::UMat::operator()	(	Range	rowRange,
		Range	colRange
	)		const

extracts a rectangular sub-matrix

◆ operator()() [2/4]

UMat cv::UMat::operator() ( const Rect & roi ) const

◆ operator()() [3/4]

UMat cv::UMat::operator() ( const Range * ranges ) const

◆ operator()() [4/4]

UMat cv::UMat::operator() ( const std::vector< Range > & ranges ) const

◆ operator=() [1/3]

UMat& cv::UMat::operator= ( const UMat & m )

assignment operators

◆ operator=() [2/3]

UMat& cv::UMat::operator= ( const Scalar & s )

sets every matrix element to s

◆ operator=() [3/3]

UMat& cv::UMat::operator= ( UMat && m )

◆ release()

void cv::UMat::release ( )

decreases reference counter;

◆ reshape() [1/2]

UMat cv::UMat::reshape	(	int	cn,
		int	rows = `0`
	)		const

creates alternative matrix header for the same data, with different

◆ reshape() [2/2]

UMat cv::UMat::reshape	(	int	cn,
		int	newndims,
		const int *	newsz
	)		const

◆ row()

UMat cv::UMat::row ( int y ) const

returns a new matrix header for the specified row

◆ rowRange() [1/2]

UMat cv::UMat::rowRange	(	int	startrow,
		int	endrow
	)		const

... for the specified row span

◆ rowRange() [2/2]

UMat cv::UMat::rowRange ( const Range & r ) const

◆ setTo()

UMat& cv::UMat::setTo	(	InputArray	value,
		InputArray	mask = `noArray()`
	)

sets some of the matrix elements to s, according to the mask

◆ step1()

size_t cv::UMat::step1 ( int i = 0 ) const

returns step/elemSize1()

◆ t()

UMat cv::UMat::t ( ) const

matrix transposition by means of matrix expressions

◆ total()

size_t cv::UMat::total ( ) const

returns the total number of matrix elements

◆ type()

int cv::UMat::type ( ) const

returns element type, similar to CV_MAT_TYPE(cvmat->type)

Examples:: samples/tapi/squares.cpp.

Referenced by cv::Stitcher::setMatchingMask().

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◆ updateContinuityFlag()

void cv::UMat::updateContinuityFlag ( )

internal use method: updates the continuity flag

◆ zeros() [1/3]

static UMat cv::UMat::zeros	(	int	rows,
		int	cols,
		int	type
	)

static

Matlab-style matrix initialization.

◆ zeros() [2/3]

static UMat cv::UMat::zeros	(	Size	size,
		int	type
	)

static

◆ zeros() [3/3]

static UMat cv::UMat::zeros	(	int	ndims,
		const int *	sz,
		int	type
	)

static

Member Data Documentation

◆ allocator

MatAllocator* cv::UMat::allocator

custom allocator

◆ cols

int cv::UMat::cols

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

Referenced by cv::Stitcher::setMatchingMask().

◆ dims

int cv::UMat::dims

the matrix dimensionality, >= 2

Referenced by cv::dnn::shape().

◆ flags

int cv::UMat::flags

includes several bit-fields:

the magic signature
continuity flag
depth
number of channels

◆ offset

size_t cv::UMat::offset

◆ rows

int cv::UMat::rows

the number of rows and columns or (-1, -1) when the matrix has more than 2 dimensions

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

Referenced by cv::Stitcher::setMatchingMask().

◆ size

MatSize cv::UMat::size

Examples:: samples/tapi/hog.cpp, and samples/tapi/squares.cpp.

Referenced by cv::dnn::shape().

◆ step

MatStep cv::UMat::step

◆ u

UMatData* cv::UMat::u

◆ usageFlags

UMatUsageFlags cv::UMat::usageFlags

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

opencv2/core/mat.hpp

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

Constructor & Destructor Documentation

◆ UMat() [1/19]

◆ UMat() [2/19]

◆ UMat() [3/19]

◆ UMat() [4/19]

◆ UMat() [5/19]

◆ UMat() [6/19]

◆ UMat() [7/19]

◆ UMat() [8/19]

◆ UMat() [9/19]

◆ UMat() [10/19]

◆ UMat() [11/19]

◆ UMat() [12/19]

◆ UMat() [13/19]

◆ UMat() [14/19]

◆ UMat() [15/19]

◆ UMat() [16/19]

◆ UMat() [17/19]

◆ UMat() [18/19]

◆ ~UMat()

◆ UMat() [19/19]

Member Function Documentation

◆ addref()

◆ adjustROI()

◆ assignTo()

◆ channels()

◆ checkVector()

◆ clone()

◆ col()

◆ colRange() [1/2]

◆ colRange() [2/2]

◆ convertTo()

◆ copySize()

◆ copyTo() [1/2]

◆ copyTo() [2/2]

◆ create() [1/4]

◆ create() [2/4]

◆ create() [3/4]

◆ create() [4/4]

◆ deallocate()

◆ depth()

◆ diag() [1/2]

◆ diag() [2/2]

◆ dot()

◆ elemSize()

◆ elemSize1()

◆ empty()

◆ eye() [1/2]

◆ eye() [2/2]

◆ getMat()

◆ getStdAllocator()

◆ handle()

◆ inv()

◆ isContinuous()

◆ isSubmatrix()

◆ locateROI()

◆ mul()

◆ ndoffset()

◆ ones() [1/3]

◆ ones() [2/3]

◆ ones() [3/3]

◆ operator()() [1/4]

◆ operator()() [2/4]

◆ operator()() [3/4]

◆ operator()() [4/4]

◆ operator=() [1/3]

◆ operator=() [2/3]

◆ operator=() [3/3]

◆ release()

◆ reshape() [1/2]

◆ reshape() [2/2]

◆ row()