一、 官网下载opencv4.2
https://opencv.org/releases/page/2/
二、编译静态库
cd opencv-4.2/
mkdir static_release
cd static_release/
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=OFF -D BUILD_SHARED_LIBS=NO -D BUILD_PNG=ON -D BUILD_JASPER=ON -D BUILD_JPEG=ON -D BUILD_TIFF=ON -D BUILD_ZLIB=ON -D WITH_JPEG=ON -D WITH_PNG=ON -D WITH_JASPER=ON -D WITH_TIFF=ON ..
sudo make install
能看到其中一个很明显的改变就是“BUILD_SHARED_LIBS=NO”这个选项，代表了不编译动态库，而是编译静态库。后面那些则是增加一些opencv所依赖的第三方库，也要把他们一起生成才行。
参考连接：https://blog.csdn.net/woainishifu/article/details/79712110
三、cmake 配置库
target_link_libraries(${project_name} ${OPENCV_DIR}/libopencv_imgcodecs.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/libopencv_imgproc.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/libopencv_core.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/libwebp.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/libIlmImf.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/liblibjasper.a)
target_link_libraries(${project_name} ${OPENCV_DIR}/libittnotify.a)
#libopencv
target_link_libraries(${project_name} "tiff" "jpeg" "png" )
四、遇到问题
缺少：libwebp.a
undefined reference to symbol 'WebPEncodeLosslessBGR'
缺少：libIlmImf.a
undefined reference to `Imf_opencv::globalThreadCount()'
缺少：liblibjasper.a
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x20e): undefined reference to `jas_matrix_destroy'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x28f): undefined reference to `jas_matrix_create'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x2b9): undefined reference to `jas_image_readcmpt'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x39a): undefined reference to `jas_image_getcmptbytype'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x3af): undefined reference to `jas_image_getcmptbytype'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x3c2): undefined reference to `jas_image_getcmptbytype'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x416): undefined reference to `jas_cmprof_createfromclrspc'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x432): undefined reference to `jas_image_chclrspc'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x446): undefined reference to `jas_image_destroy'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x45c): undefined reference to `jas_cmprof_destroy'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x6fa): undefined reference to `jas_matrix_destroy'
/usr/bin/ld: grfmt_jpeg2000.cpp:(.text._ZN2cv13Jpeg2KDecoder8readDataERNS_3MatE+0x7aa): undefined reference to `jas_cmprof_destroy
缺少：libittnotify.a
undefined reference to `__itt_region_end_ptr__3_0'
五、解决方法
先完整编译opencv 环境
https://www.jianshu.com/p/f73fcb9a0b1a
再使用 locate 查找 .a静态文件
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