Core Operations on Matrices

Classes
class	cv::cuda::LookUpTable
	Base class for transform using lookup table. More...

Functions
void	cv::cuda::copyMakeBorder (InputArray src, OutputArray dst, int top, int bottom, int left, int right, int borderType, Scalar value=Scalar(), Stream &stream=Stream::Null())
	Forms a border around an image. More...
Ptr< LookUpTable >	cv::cuda::createLookUpTable (InputArray lut)
	Creates implementation for cuda::LookUpTable . More...
void	cv::cuda::flip (InputArray src, OutputArray dst, int flipCode, Stream &stream=Stream::Null())
	Flips a 2D matrix around vertical, horizontal, or both axes. More...
void	cv::cuda::merge (const GpuMat *src, size_t n, OutputArray dst, Stream &stream=Stream::Null())
	Makes a multi-channel matrix out of several single-channel matrices. More...
void	cv::cuda::merge (const std::vector< GpuMat > &src, OutputArray dst, Stream &stream=Stream::Null())
void	cv::cuda::split (InputArray src, GpuMat *dst, Stream &stream=Stream::Null())
	Copies each plane of a multi-channel matrix into an array. More...
void	cv::cuda::split (InputArray src, std::vector< GpuMat > &dst, Stream &stream=Stream::Null())
void	cv::cuda::transpose (InputArray src1, OutputArray dst, Stream &stream=Stream::Null())
	Transposes a matrix. More...

Detailed Description

Function Documentation

copyMakeBorder()

void cv::cuda::copyMakeBorder	(	InputArray	src,
		OutputArray	dst,
		int	top,
		int	bottom,
		int	left,
		int	right,
		int	borderType,
		Scalar	value = Scalar(),
		Stream &	stream = Stream::Null()
	)

Forms a border around an image.

Parameters

src	Source image. CV_8UC1 , CV_8UC4 , CV_32SC1 , and CV_32FC1 types are supported.
dst	Destination image with the same type as src. The size is Size(src.cols+left+right, src.rows+top+bottom) .
top
bottom
left
right	Number of pixels in each direction from the source image rectangle to extrapolate. For example: top=1, bottom=1, left=1, right=1 mean that 1 pixel-wide border needs to be built.
borderType	Border type. See borderInterpolate for details. BORDER_REFLECT101 , BORDER_REPLICATE , BORDER_CONSTANT , BORDER_REFLECT and BORDER_WRAP are supported for now.
value	Border value.
stream	Stream for the asynchronous version.

createLookUpTable()

Ptr<LookUpTable> cv::cuda::createLookUpTable

(

InputArray

lut

)

Creates implementation for cuda::LookUpTable .

Parameters

lut	Look-up table of 256 elements. It is a continuous CV_8U matrix.

flip()

void cv::cuda::flip	(	InputArray	src,
		OutputArray	dst,
		int	flipCode,
		Stream &	stream = Stream::Null()
	)

Flips a 2D matrix around vertical, horizontal, or both axes.

Parameters

src	Source matrix. Supports 1, 3 and 4 channels images with CV_8U, CV_16U, CV_32S or CV_32F depth.
dst	Destination matrix.
flipCode	Flip mode for the source: 0 Flips around x-axis. > 0 Flips around y-axis. < 0 Flips around both axes.
stream	Stream for the asynchronous version.

See also

flip

merge() [1/2]

void cv::cuda::merge	(	const GpuMat *	src,
		size_t	n,
		OutputArray	dst,
		Stream &	stream = Stream::Null()
	)

Makes a multi-channel matrix out of several single-channel matrices.

Parameters

src	Array/vector of source matrices.
n	Number of source matrices.
dst	Destination matrix.
stream	Stream for the asynchronous version.

See also

merge

merge() [2/2]

void cv::cuda::merge	(	const std::vector< GpuMat > &	src,
		OutputArray	dst,
		Stream &	stream = Stream::Null()
	)

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

split() [1/2]

void cv::cuda::split	(	InputArray	src,
		GpuMat *	dst,
		Stream &	stream = Stream::Null()
	)

Copies each plane of a multi-channel matrix into an array.

Parameters

src	Source matrix.
dst	Destination array/vector of single-channel matrices.
stream	Stream for the asynchronous version.

See also

split

split() [2/2]

void cv::cuda::split	(	InputArray	src,
		std::vector< GpuMat > &	dst,
		Stream &	stream = Stream::Null()
	)

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

transpose()

void cv::cuda::transpose	(	InputArray	src1,
		OutputArray	dst,
		Stream &	stream = Stream::Null()
	)

Transposes a matrix.

Parameters

src1	Source matrix. 1-, 4-, 8-byte element sizes are supported for now.
dst	Destination matrix.
stream	Stream for the asynchronous version.

See also

transpose