Initialization and Information

Detailed Description

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.