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.
Ptr< LookUpTable >	cv::cuda::createLookUpTable (InputArray lut)
	Creates implementation for cuda::LookUpTable .
void	cv::cuda::flip (InputArray src, OutputArray dst, int flipCode, Stream &stream=Stream::Null())
	Flips a 2D matrix around vertical, horizontal, or both axes.
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.
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.
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.

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()
	)

#include <opencv2/cudaarithm.hpp>

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	Number of top pixels
bottom	Number of bottom pixels
left	Number of left pixels
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

)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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()
	)

#include <opencv2/cudaarithm.hpp>

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