If I try to build OpenCV 4.0.0 with inferenca Engineen enabled, I am getting this error:
1>------ Build started: Project: opencv_dnn, Configuration: Release x64 ------
1>dnn.cpp
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(1595): error C2259: 'cv::dnn::InfEngineBackendNet': cannot instantiate abstract class
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(1595): note: due to following members:
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(1595): note: 'InferenceEngine::StatusCode InferenceEngine::ICNNNetwork::serialize(const std::string &,const std::string &,InferenceEngine::ResponseDesc *) noexcept const': is abstract
1>C:\local\Intel\computer_vision_sdk_2018.5.445\deployment_tools\inference_engine\include\ie_icnn_network.hpp(190): note: see declaration of 'InferenceEngine::ICNNNetwork::serialize'
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(2556): error C2259: 'cv::dnn::InfEngineBackendNet': cannot instantiate abstract class
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(2556): note: due to following members:
1>C:\local\opencv-4.0.0\modules\dnn\src\dnn.cpp(2556): note: 'InferenceEngine::StatusCode InferenceEngine::ICNNNetwork::serialize(const std::string &,const std::string &,InferenceEngine::ResponseDesc *) noexcept const': is abstract
1>C:\local\Intel\computer_vision_sdk_2018.5.445\deployment_tools\inference_engine\include\ie_icnn_network.hpp(190): note: see declaration of 'InferenceEngine::ICNNNetwork::serialize'
1>Done building project "opencv_dnn.vcxproj" -- FAILED.
Why I am getting this error?
Cmake output is:
Selecting Windows SDK version 10.0.17763.0 to target Windows 10.0.17134.
AVX_512F is not supported by C++ compiler
AVX512_SKX is not supported by C++ compiler
Dispatch optimization AVX512_SKX is not available, skipped
libjpeg-turbo: VERSION = 1.5.3, BUILD = opencv-4.0.0-libjpeg-turbo
Looking for Mfapi.h
Looking for Mfapi.h - found
found Intel IPP (ICV version): 2019.0.0 [2019.0.0 Gold]
at: C:/local/opencv-build/3rdparty/ippicv/ippicv_win/icv
found Intel IPP Integration Wrappers sources: 2019.0.0
at: C:/local/opencv-build/3rdparty/ippicv/ippicv_win/iw
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find BLAS (missing: BLAS_LIBRARIES)
LAPACK requires BLAS
A library with LAPACK API not found. Please specify library location.
Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
Detected InferenceEngine: cmake package
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
OpenCV Python: during development append to PYTHONPATH: C:/local/opencv-build/python_loader
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
General configuration for OpenCV 4.0.0 =====================================
Version control: unknown
Platform:
Timestamp: 2019-02-09T13:06:47Z
Host: Windows 10.0.17134 AMD64
CMake: 3.13.0-rc3
CMake generator: Visual Studio 15 2017 Win64
CMake build tool: C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/MSBuild/15.0/Bin/MSBuild.exe
MSVC: 1916
CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (7 files): + SSSE3 SSE4_1
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (13 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
C/C++:
Built as dynamic libs?: NO
C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x64/cl.exe (ver 19.16.27026.1)
C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP4 /MT /O2 /Ob2 /DNDEBUG
C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP4 /MTd /Zi /Ob0 /Od /RTC1
C Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx86/x64/cl.exe
C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP4 /MT /O2 /Ob2 /DNDEBUG
C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP4 /MTd /Zi /Ob0 /Od /RTC1
Linker flags (Release): /machine:x64 /NODEFAULTLIB:atlthunk.lib /INCREMENTAL:NO /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:libcpmtd.lib /NODEFAULTLIB:msvcrtd.lib
Linker flags (Debug): /machine:x64 /NODEFAULTLIB:atlthunk.lib /debug /INCREMENTAL /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:msvcrt.lib
ccache: NO
Precompiled headers: YES
Extra dependencies: IE::inference_engine ade comctl32 gdi32 ole32 setupapi ws2_32
3rdparty dependencies: ittnotify libprotobuf zlib libjpeg-turbo libwebp libpng libtiff libjasper IlmImf quirc ippiw ippicv
OpenCV modules:
To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc java_bindings_generator ml objdetect photo python3 python_bindings_generator stitching ts video videoio
Disabled: world
Disabled by dependency: -
Unavailable: java js python2
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO
Windows RT support: NO
GUI:
Win32 UI: YES
VTK support: NO
Media I/O:
ZLib: build (ver 1.2.11)
JPEG: build-libjpeg-turbo (ver 1.5.3-62)
WEBP: build (ver encoder: 0x020e)
PNG: build (ver 1.6.35)
TIFF: build (ver 42 - 4.0.9)
JPEG 2000: build (ver 1.900.1)
OpenEXR: build (ver 1.7.1)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (ver 58.35.100)
avformat: YES (ver 58.20.100)
avutil: YES (ver 56.22.100)
swscale: YES (ver 5.3.100)
avresample: YES (ver 4.0.0)
GStreamer: NO
DirectShow: YES
Media Foundation: YES
Parallel framework: Concurrency
Trace: YES (with Intel ITT)
Other third-party libraries:
Intel IPP: 2019.0.0 Gold [2019.0.0]
at: C:/local/opencv-build/3rdparty/ippicv/ippicv_win/icv
Intel IPP IW: sources (2019.0.0)
at: C:/local/opencv-build/3rdparty/ippicv/ippicv_win/iw
Lapack: NO
Inference Engine: YES (2018040000 / 1.5.0)
libs: C:/local/Intel/computer_vision_sdk_2018.5.445/deployment_tools/inference_engine/lib/intel64/Release/inference_engine.lib / C:/local/Intel/computer_vision_sdk_2018.5.445/deployment_tools/inference_engine/lib/intel64/Debug/inference_engined.lib
includes: C:/local/Intel/computer_vision_sdk_2018.5.445/deployment_tools/inference_engine/include
Eigen: NO
Custom HAL: NO
Protobuf: build (3.5.1)
OpenCL: YES (no extra features)
Include path: C:/local/opencv-4.0.0/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python 3:
Interpreter: C:/Program Files/Python36/python.exe (ver 3.6.5)
Libraries: C:/Program Files/Python36/libs/python36.lib (ver 3.6.5)
numpy: C:/Users/m/AppData/Roaming/Python/Python36/site-packages/numpy/core/include (ver 1.15.4)
packages path: C:/Program Files/Python36/Lib/site-packages
Python (for build): C:/Program Files/Python36/python.exe
Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO
Install to: C:/local/opencv
-----------------------------------------------------------------
Configuring done
Summarizing our discussion in comments,
OpenVINO R5 released in December however attached CMake summary shows that used OpenCV version is older (November). So the solution is to update OpenCV to the latest version which supports Intel's Inference Engine from OpenVINO R5.
Wiki of how to build OpenCV with IE support: https://github.com/opencv/opencv/wiki/Intel%27s-Deep-Learning-Inference-Engine-backend