#先安装 cmake 3.14
# cmake安装到了 /usr/local/bin
#配置PATH
export PATH="$PATH:/usr/local/bin"
#下载最新的opencv
git clone "https://github.com/opencv/opencv.git"
git clone "https://github.com/opencv/opencv_contrib.git"
#定义自己的生成目录
mkdir 20190508
mkdir -p opencv-master/build
cd opencv-master/build
#生成配置的时候选择带上opencv-contrib
cmake -DOPENCV_EXTRA_MODULES_PATH=/home/admin/opencv/opencv_contrib-master/modules ..
#执行ccmake，配置编译选项
ccmake ..
#我配置的主要选项如下：
1 BUILD_DOCS:BOOL=OFF 2 BUILD_EXAMPLES:BOOL=OFF 3 BUILD_IPP_IW:BOOL=OFF 4 BUILD_ITT:BOOL=OFF 5 BUILD_JASPER:BOOL=OFF 6 BUILD_JAVA:BOOL=OFF 7 BUILD_JPEG:BOOL=OFF 8 BUILD_OPENEXR:BOOL=OFF 9 //Build performance tests 10 BUILD_PERF_TESTS:BOOL=OFF 11 //Build libpng from source 12 BUILD_PNG:BOOL=OFF 13 //Force to build libprotobuf from sources 14 BUILD_PROTOBUF:BOOL=OFF 15 //Build shared libraries (.dll/.so) instead of static ones (.lib/.a) 16 BUILD_SHARED_LIBS:BOOL=OFF 17 //Download and build TBB from source 18 BUILD_TBB:BOOL=OFF 19 //Build accuracy & regression tests 20 BUILD_TESTS:BOOL=OFF 21 //Build libtiff from source 22 BUILD_TIFF:BOOL=OFF 23 //Build WebP from source 24 BUILD_WEBP:BOOL=OFF 25 //Build utility applications (used for example to train classifiers) 26 BUILD_opencv_apps:BOOL=OFF 27 //Include opencv_face module into the OpenCV build 28 BUILD_opencv_face:BOOL=OFF 29 //Include opencv_highgui module into the OpenCV build 30 BUILD_opencv_highgui:BOOL=OFF 31 //Include opencv_java_bindings_generator module into the OpenCV 32 // build 33 BUILD_opencv_java_bindings_generator:BOOL=OFF 34 //Build JavaScript bindings by Emscripten 35 BUILD_opencv_js:BOOL=OFF 36 //Include opencv_xfeatures2d module into the OpenCV build 37 BUILD_opencv_xfeatures2d:BOOL=OFF 38 //Installation Directory 39 CMAKE_INSTALL_PREFIX:PATH=/home/admin/opencv/20190508 40 41 //Include NVidia Cuda Runtime support 42 WITH_CUDA:BOOL=OFF 43 44 //Include Intel IPP support 45 WITH_IPP:BOOL=OFF 46 47 //Include Intel ITT support 48 WITH_ITT:BOOL=OFF 49 50 //Include JPEG2K support 51 WITH_JASPER:BOOL=OFF 52 53 //Include JPEG support 54 WITH_JPEG:BOOL=OFF 55 56 //Include Lapack library support 57 WITH_LAPACK:BOOL=OFF 58 59 //Include ILM support via OpenEXR 60 WITH_OPENEXR:BOOL=OFF 61 62 //Include PNG support 63 WITH_PNG:BOOL=OFF 64 65 //Build with Qt Backend support 66 WITH_QT:BOOL=OFF 67 68 //Include Intel TBB support 69 WITH_TBB:BOOL=OFF 70 71 //Include TIFF support 72 WITH_TIFF:BOOL=OFF 73 74 //Include Vulkan support 75 WITH_VULKAN:BOOL=OFF 76 77 //Include WebP support 78 WITH_WEBP:BOOL=OFF
配置有这样一些考虑：
1.仅满足linux下的基本的图形处理的使用；
2.不要CUDA，不要各种图形格式的支持；
3.生成静态库，避免多人使用的情况下大家相互覆盖；
4.生成在自己的目录下，不放在系统目录。
配置完成后按g，生成配置，退出。
make -j 20
make install
等到链接具体的程序的时候，还需要额外的一些库：
gcc -o xxx_elf xxx.o -L"/home/admin/opencv/20190508/lib64" -lopencv_core -lopencv_imgproc -lopencv_imgcodecs
-ldl -lz -pthread