[记] OpenCV4 源码编译安装 | 记录

OpenCV4 源码编译安装 | 记录

参考资料

• 官方文档：https://docs.opencv.org/4.x/d7/d9f/tutorial_linux_install.html

环境

• wsl2-ubuntu20.04
• opencv4.5.5

步骤

1. 安装GCC \ CMake \ make

   sudo apt install -y g++
   sudo apt install -y cmake
   sudo apt install -y make
   

2. 下载源码

   github地址：https://github.com/opencv

   opencv官网：https://opencv.org/releases/

   注：opencv_contrib应与opencv版本号相同

3. 编译安装

   注：可将opencv_contrib包放置在opencv文件夹内。

   创建build文件夹：

   cd opencv<>
   mkdir build && cd build
   

   配置cmake：

   cmake -D CMAKE_BUILD_TYPE=RELEASE \
       -D CMAKE_C_COMPILER=/usr/bin/gcc \
       -D CMAKE_INSTALL_PREFIX=/usr/local \
       -D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib-4.5.5/modules/ \
       -D CUDA_CUDA_LIBRARY=/usr/local/cuda/lib64/stubs/libcuda.so \
       -D CUDA_ARCH_BIN=7.0 \
       -D CUDA_ARCH_PTX="" \
       -D WITH_CUDA=ON \
       -D WITH_TBB=ON \
       -D WITH_FFMPEG=ON \
       -D BUILD_PYTHON_SUPPORT=ON \
       -D BUILD_NEW_PYTHON_SUPPORT=ON \
       -D BUILD_OPENCV_PYTHON3=ON \
       -D WITH_V4L=ON \
       -D INSTALL_C_EXAMPLES=ON \
       -D INSTALL_PYTHON_EXAMPLES=ON \
       -D BUILD_EXAMPLES=ON \
       -D WITH_QT=ON \
       -D WITH_GSTREAMER=ON \
       -D WITH_OPENGL=ON \
       -D ENABLE_FAST_MATH=1 \
       -D CUDA_FAST_MATH=1 \
       -D OPENCV_GENERATE_PKGCONFIG=ON \
       -D OPENCV_PC_FILE_NAME=opencv.pc \
       -D CUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-11.0 \
       -D CMAKE_LIBRARY_PATH=/usr/local/cuda/lib64/stubs \
       -D WITH_CUBLAS=ON \
       -D WITH_NVCUVID=ON \
       -D BUILD_opencv_cudacodec=ON \
       -D OPENCV_DNN_CUDA=ON \
       -D WITH_CUDNN=ON \
       -D OPENCV_ENABLE_NONFREE=ON\
       -D WITH_GSTREAMER=ON \
       -D PYTHON3_INCLUDE_DIR=/usr/include/python3.8 \
       -D PYTHON3_PACKAGES_PATH=/usr/lib/python3/dist-packages \
       -D BUILD_EXAMPLES=ON ..
   

   以上为配置参数示例，其中OPENCV_EXTRA_MODULES_PATH为opencv_contrib文件夹路径。

   注：对于opencv4.5.5版本对于python的支持，建议增加-D PYTHON3_INCLUDE_DIR=/usr/include/python3.8，否则可能出现无法import cv2状况，具体原因未深究。

   配置完成结果实例如下：

   -- General configuration for OpenCV 4.5.5 =====================================
   --   Version control:               unknown
   --
   --   Extra modules:
   --     Location (extra):            /home/fish/opencv/opencv-4.5.5/opencv_contrib-4.5.5/modules
   --     Version control (extra):     unknown
   --
   --   Platform:
   --     Timestamp:                   2022-05-01T11:37:44Z
   --     Host:                        Linux 5.10.102.1-microsoft-standard-WSL2 x86_64
   --     CMake:                       3.16.3
   --     CMake generator:             Unix Makefiles
   --     CMake build tool:            /usr/bin/make
   --     Configuration:               RELEASE
   --
   --   CPU/HW features:
   --     Baseline:                    SSE SSE2 SSE3
   --       requested:                 SSE3
   --     Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
   --       requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
   --       SSE4_1 (18 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 (33 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
   --       AVX512_SKX (8 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
   --
   --   C/C++:
   --     Built as dynamic libs?:      YES
   --     C++ standard:                11
   --     C++ Compiler:                /usr/bin/c++  (ver 9.4.0)
   --     C++ flags (Release):         -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
   --     C++ flags (Debug):           -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
   --     C Compiler:                  /usr/bin/gcc
   --     C flags (Release):           -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
   --     C flags (Debug):             -fsigned-char -ffast-math -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
   --     Linker flags (Release):      -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a   -Wl,--gc-sections -Wl,--as-needed
   --     Linker flags (Debug):        -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a   -Wl,--gc-sections -Wl,--as-needed
   --     ccache:                      NO
   --     Precompiled headers:         NO
   --     Extra dependencies:          m pthread cudart_static dl rt nppc nppial nppicc nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cudnn cufft -L/usr/local/cuda-11.0/lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/local/cuda/lib64
   --     3rdparty dependencies:
   --
   --   OpenCV modules:
   --     To be built:                 aruco barcode bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
   --     Disabled:                    world
   --     Disabled by dependency:      -
   --     Unavailable:                 alphamat cvv hdf java julia matlab ovis python2 sfm viz
   --     Applications:                tests perf_tests examples apps
   --     Documentation:               NO
   --     Non-free algorithms:         YES
   --
   --   GUI:                           GTK3
   --     QT:                          NO
   --     GTK+:                        YES (ver 3.24.20)
   --       GThread :                  YES (ver 2.64.6)
   --       GtkGlExt:                  NO
   --     OpenGL support:              NO
   --     VTK support:                 NO
   --
   --   Media I/O:
   --     ZLib:                        /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
   --     JPEG:                        /usr/lib/x86_64-linux-gnu/libjpeg.so (ver 80)
   --     WEBP:                        build (ver encoder: 0x020f)
   --     PNG:                         /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.37)
   --     TIFF:                        /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 / 4.1.0)
   --     JPEG 2000:                   build (ver 2.4.0)
   --     OpenEXR:                     build (ver 2.3.0)
   --     HDR:                         YES
   --     SUNRASTER:                   YES
   --     PXM:                         YES
   --     PFM:                         YES
   --
   --   Video I/O:
   --     DC1394:                      NO
   --     FFMPEG:                      YES
   --       avcodec:                   YES (58.54.100)
   --       avformat:                  YES (58.29.100)
   --       avutil:                    YES (56.31.100)
   --       swscale:                   YES (5.5.100)
   --       avresample:                NO
   --     GStreamer:                   NO
   --     v4l/v4l2:                    YES (linux/videodev2.h)
   --
   --   Parallel framework:            pthreads
   --
   --   Trace:                         YES (with Intel ITT)
   --
   --   Other third-party libraries:
   --     Intel IPP:                   2020.0.0 Gold [2020.0.0]
   --            at:                   /home/fish/opencv/opencv-4.5.5/build/3rdparty/ippicv/ippicv_lnx/icv
   --     Intel IPP IW:                sources (2020.0.0)
   --               at:                /home/fish/opencv/opencv-4.5.5/build/3rdparty/ippicv/ippicv_lnx/iw
   --     VA:                          NO
   --     Lapack:                      NO
   --     Eigen:                       NO
   --     Custom HAL:                  NO
   --     Protobuf:                    build (3.19.1)
   --
   --   NVIDIA CUDA:                   YES (ver 11.0, CUFFT CUBLAS FAST_MATH)
   --     NVIDIA GPU arch:             70
   --     NVIDIA PTX archs:
   --
   --   cuDNN:                         YES (ver 8.0.5)
   --
   --   OpenCL:                        YES (no extra features)
   --     Include path:                /home/fish/opencv/opencv-4.5.5/3rdparty/include/opencl/1.2
   --     Link libraries:              Dynamic load
   --
   --   Python 3:
   --     Interpreter:                 /usr/bin/python3 (ver 3.8.10)
   --     Libraries:                   /usr/lib/x86_64-linux-gnu/libpython3.8.so (ver 3.8.10)
   --     numpy:                       /home/fish/.local/lib/python3.8/site-packages/numpy/core/include (ver 1.22.3)
   --     install path:                /usr/lib/python3/dist-packages/cv2/python-3.8
   --
   --   Python (for build):            /usr/bin/python2.7
   --
   --   Java:
   --     ant:                         NO
   --     JNI:                         NO
   --     Java wrappers:               NO
   --     Java tests:                  NO
   --
   --   Install to:                    /usr/local
   -- -----------------------------------------------------------------
   

   编译：

   make
   

   安装：

   sudo make install
   

   默认安装位置：

   • /usr/local/bin - executable files
   • /usr/local/lib - libraries (.so)
   • /usr/local/cmake/opencv4 - cmake package
   • /usr/local/include/opencv4 - headers
   • /usr/local/share/opencv4 - other files (e.g. trained cascades in XML format)

4. 验证

   该命令显示opencv版本号。

   c++:

   pkg-config opencv --modversion
   

   python:

   python3
   import cv2
   print(cv2.__version__)