cv::cuda::GpuMatND クラス

公開型
using	SizeArray = std::vector< int >
using	StepArray = std::vector< size_t >
using	IndexArray = std::vector< int >

公開メンバ関数
	~GpuMatND ()
	destructor
	GpuMatND ()
	default constructor
	GpuMatND (SizeArray size, int type)
	GpuMatND (SizeArray size, int type, void *data, StepArray step=StepArray())
void	create (SizeArray size, int type)
	Allocates GPU memory. Suppose there is some GPU memory already allocated. In that case, this method may choose to reuse that GPU memory under the specific condition: it must be of the same size and type, not externally allocated, the GPU memory is continuous(i.e., isContinuous() is true), and is not a sub-matrix of another GpuMatND (i.e., isSubmatrix() is false). In other words, this method guarantees that the GPU memory allocated by this method is always continuous and is not a sub-region of another GpuMatND.
void	release ()
void	swap (GpuMatND &m) noexcept
GpuMatND	clone () const
	Creates a full copy of the array and the underlying data. The method creates a full copy of the array. It mimics the behavior of Mat::clone(), i.e. the original step is not taken into account. So, the array copy is a continuous array occupying total()*elemSize() bytes.
GpuMatND	clone (Stream &stream) const
GpuMatND	operator() (const std::vector< Range > &ranges) const
	Extracts a sub-matrix. The operator makes a new header for the specified sub-array of *this. The operator is an O(1) operation, that is, no matrix data is copied. [詳解]
GpuMat	createGpuMatHeader (IndexArray idx, Range rowRange, Range colRange) const
	Creates a GpuMat header for a 2D plane part of an n-dim matrix. [詳解]
GpuMat	createGpuMatHeader () const
GpuMat	operator() (IndexArray idx, Range rowRange, Range colRange) const
	Extracts a 2D plane part of an n-dim matrix. It differs from createGpuMatHeader(IndexArray, Range, Range) in that it clones a part of this GpuMatND to the returned GpuMat. [詳解]
	operator GpuMat () const
	Extracts a 2D plane part of an n-dim matrix if this GpuMatND is effectively 2D. It differs from createGpuMatHeader() in that it clones a part of this GpuMatND. [詳解]
	GpuMatND (const GpuMatND &)=default
GpuMatND &	operator= (const GpuMatND &)=default
	GpuMatND (GpuMatND &&) noexcept=default
GpuMatND &	operator= (GpuMatND &&) noexcept=default
void	upload (InputArray src)
void	upload (InputArray src, Stream &stream)
void	download (OutputArray dst) const
void	download (OutputArray dst, Stream &stream) const
bool	isContinuous () const
bool	isSubmatrix () const
	returns true if the matrix is a sub-matrix of another matrix
size_t	elemSize () const
	returns element size in bytes
size_t	elemSize1 () const
	returns the size of element channel in bytes
bool	empty () const
	returns true if data is null
bool	external () const
	returns true if not empty and points to external(user-allocated) gpu memory
uchar *	getDevicePtr () const
	returns pointer to the first byte of the GPU memory
size_t	total () const
	returns the total number of array elements
size_t	totalMemSize () const
	returns the size of underlying memory in bytes
int	type () const
	returns element type

公開変数類
int	flags
int	dims
	matrix dimensionality
SizeArray	size
	shape of this array
StepArray	step

構築子と解体子

GpuMatND() [1/2]

cv::cuda::GpuMatND::GpuMatND	(	SizeArray	size,
		int	type
	)

これはオーバーロードされたメンバ関数です。利便性のために用意されています。元の関数との違いは引き数のみです。

引数

size	Array of integers specifying an n-dimensional array shape.
type	Array type. Use CV_8UC1, ..., CV_16FC4 to create 1-4 channel matrices, or CV_8UC(n), ..., CV_64FC(n) to create multi-channel (up to CV_CN_MAX channels) matrices.

GpuMatND() [2/2]

cv::cuda::GpuMatND::GpuMatND	(	SizeArray	size,
		int	type,
		void *	data,
		StepArray	step = StepArray()
	)

これはオーバーロードされたメンバ関数です。利便性のために用意されています。元の関数との違いは引き数のみです。

引数

size	Array of integers specifying an n-dimensional array shape.
type	Array type. Use CV_8UC1, ..., CV_16FC4 to create 1-4 channel matrices, or CV_8UC(n), ..., CV_64FC(n) to create multi-channel (up to CV_CN_MAX channels) matrices.
data	Pointer to the user data. Matrix constructors that take data and step parameters do not allocate matrix data. Instead, they just initialize the matrix header that points to the specified data, which means that no data is copied. This operation is very efficient and can be used to process external data using OpenCV functions. The external data is not automatically deallocated, so you should take care of it.
step	Array of _size.size()-1 steps in case of a multi-dimensional array (the last step is always set to the element size). If not specified, the matrix is assumed to be continuous.

関数詳解

clone()

GpuMatND cv::cuda::GpuMatND::clone

(

Stream &

stream

)

const

これはオーバーロードされたメンバ関数です。利便性のために用意されています。元の関数との違いは引き数のみです。 This overload is non-blocking, so it may return even if the copy operation is not finished.

createGpuMatHeader() [1/2]

GpuMat cv::cuda::GpuMatND::createGpuMatHeader

(

)

const

これはオーバーロードされたメンバ関数です。利便性のために用意されています。元の関数との違いは引き数のみです。 Creates a GpuMat header if this GpuMatND is effectively 2D.

覚え書き

The returned GpuMat is constructed with the constructor for user-allocated data. That is, It does not perform reference counting.

This function does not increment this GpuMatND's reference counter.

createGpuMatHeader() [2/2]

GpuMat cv::cuda::GpuMatND::createGpuMatHeader	(	IndexArray	idx,
		Range	rowRange,
		Range	colRange
	)		const

Creates a GpuMat header for a 2D plane part of an n-dim matrix.

覚え書き

The returned GpuMat is constructed with the constructor for user-allocated data. That is, It does not perform reference counting.

This function does not increment this GpuMatND's reference counter.

isContinuous()

bool cv::cuda::GpuMatND::isContinuous

(

)

const

returns true iff the GpuMatND data is continuous (i.e. when there are no gaps between successive rows)

operator GpuMat()

cv::cuda::GpuMatND::operator GpuMat

(

)

const

Extracts a 2D plane part of an n-dim matrix if this GpuMatND is effectively 2D. It differs from createGpuMatHeader() in that it clones a part of this GpuMatND.

覚え書き

This operator does not increment this GpuMatND's reference counter;

operator()() [1/2]

GpuMatND cv::cuda::GpuMatND::operator()

(

const std::vector< Range > &

ranges

)

const

Extracts a sub-matrix. The operator makes a new header for the specified sub-array of *this. The operator is an O(1) operation, that is, no matrix data is copied.

引数

ranges

Array of selected ranges along each dimension.

operator()() [2/2]

GpuMat cv::cuda::GpuMatND::operator()	(	IndexArray	idx,
		Range	rowRange,
		Range	colRange
	)		const

Extracts a 2D plane part of an n-dim matrix. It differs from createGpuMatHeader(IndexArray, Range, Range) in that it clones a part of this GpuMatND to the returned GpuMat.

覚え書き

This operator does not increment this GpuMatND's reference counter;

メンバ詳解

flags

int cv::cuda::GpuMatND::flags

includes several bit-fields:

• the magic signature
• continuity flag
• depth
• number of channels

step

StepArray cv::cuda::GpuMatND::step

step values Their semantics is identical to the semantics of step for Mat.

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このクラス詳解は次のファイルから抽出されました:

• core/cuda.hpp