Initialization and Information

Detailed Description

Functions
void	cv::cann::finalizeAcl ()
	finalize AscendCL.
void	cv::cann::finalizeDvpp ()
	finalize DVPP system.
int32_t	cv::cann::getDevice ()
	Get current Ascend device.
AscendMat	cv::cann::getInputMat (InputArray src, AscendStream &stream)
	Get Ascend matrix object from Input array, upload matrix memory if need. (Non-Blocking call)
AscendMat	cv::cann::getOutputMat (OutputArray dst, int rows, int cols, int type, AscendStream &stream)
	Get Ascend matrix object from Output array, upload matrix memory if need.
void	cv::cann::initAcl ()
	init AscendCL.
void	cv::cann::initDvpp ()
	init DVPP system.
void	cv::cann::resetDevice ()
	Clear all context created in current Ascend device.
void	cv::cann::setDevice (int device)
	Choose Ascend npu device.
void	cv::cann::syncOutput (const AscendMat &dst, OutputArray _dst, AscendStream &stream)
	Sync output matrix to Output array, download matrix memory if need.

Function Documentation

finalizeAcl()

void cv::cann::finalizeAcl

(

)

#include <opencv2/cann.hpp>

finalize AscendCL.

Note

finalizeAcl only can be called once for a process. Call this function after all AscendCL options finished.

finalizeDvpp()

void cv::cann::finalizeDvpp

(

)

#include <opencv2/cann.hpp>

finalize DVPP system.

Note

Supported devices: Atlas Inference Series products, Atlas 200/500 A2 Inference products and Atlas A2 Training Series products/Atlas 300I A2 Inference products

getDevice()

int32_t cv::cann::getDevice

(

)

#include <opencv2/cann.hpp>

Get current Ascend device.

getInputMat()

AscendMat cv::cann::getInputMat	(	InputArray	src,
		AscendStream &	stream
	)

#include <opencv2/cann.hpp>

Get Ascend matrix object from Input array, upload matrix memory if need. (Non-Blocking call)

getOutputMat()

AscendMat cv::cann::getOutputMat	(	OutputArray	dst,
		int	rows,
		int	cols,
		int	type,
		AscendStream &	stream
	)

#include <opencv2/cann.hpp>

Get Ascend matrix object from Output array, upload matrix memory if need.

initAcl()

void cv::cann::initAcl

(

)

#include <opencv2/cann.hpp>

init AscendCL.

initDvpp()

void cv::cann::initDvpp

(

)

#include <opencv2/cann.hpp>

init DVPP system.

Note

The DVPP interfaces used are all version V2. Supported devices: Atlas Inference Series products, Atlas 200/500 A2 Inference products and Atlas A2 Training Series products/Atlas 300I A2 Inference products

resetDevice()

void cv::cann::resetDevice

(

)

#include <opencv2/cann.hpp>

Clear all context created in current Ascend device.

setDevice()

void cv::cann::setDevice

(

int

device

)

#include <opencv2/cann.hpp>

Choose Ascend npu device.

syncOutput()

void cv::cann::syncOutput	(	const AscendMat &	dst,
		OutputArray	_dst,
		AscendStream &	stream
	)

#include <opencv2/cann.hpp>

Sync output matrix to Output array, download matrix memory if need.