opencv dnn 模块与 OpenVino

Question

I have no problems when working with dnn module But I have downloaded OPENVINO to use dnn with engine inference, and I can't load the opencv_dnn452d.dll library When I go to the opencv subdirecotry in openvino, and execute opencv_version_win32d.exe, I get this output, that says that inference engine has 3 backends (ONETBB, TBB and OPENM), but none of them can be checked correctly:

[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\parallel\registry_parallel.impl.hpp (90) cv::parallel::ParallelBackendRegistry::ParallelBackendRegistry core(parallel): Enabled backends(3, sorted by priority): ONETBB(1000); TBB(990); OPENMP(980)
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load C:\Program Files (x86)\Intel\openvino_2021.3.394\opencv\bin\opencv_core_parallel_onetbb452_64d.dll => FAILED
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_onetbb452_64d.dll => FAILED
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load C:\Program Files (x86)\Intel\openvino_2021.3.394\opencv\bin\opencv_core_parallel_tbb452_64d.dll => FAILED
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_tbb452_64d.dll => FAILED
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load C:\Program Files (x86)\Intel\openvino_2021.3.394\opencv\bin\opencv_core_parallel_openmp452_64d.dll => FAILED
[ INFO:0] global C:\jenkins\workspace\OpenCV\OpenVINO\2021.3\build\windows\opencv\modules\core\src\utils\plugin_loader.impl.hpp (67) cv::plugin::impl::DynamicLib::libraryLoad load opencv_core_parallel_openmp452_64d.dll => FAILED

What do I have to do to get inference engine working correctly? Thanks in advance for your answer

Answer 1

First and foremost you need to install some pre-requisite for OpenVINO.

Then, you need to set it up properly in your system.

You can follow this step by step guide .