opencv安装教程

本教程在centos7.9环境下操作

安装opencv

安装依赖

yum -y install git curl pkgconfig cmake gtk2-devel libpng-devel libjpeg-devel libtiff-devel tbb tbb-devel libdc1394-devel unzip

安装cmake 3.5.2

wget https://cmake.org/files/v3.5/cmake-3.5.2.tar.gz
 ./bootstrap --prefix=/usr
 make
 make install

下载、编译安装opencv

cd ~
wget https://github.com/opencv/opencv/archive/4.5.5.zip -O opencv_4.5.5.zip
wget https://github.com/opencv/opencv_contrib/archive/4.5.5.zip -O opencv_contrib_4.5.5.zip
unzip opencv_4.5.5.zip
unzip opencv_contrib_4.5.5.zip

cd opencv_4.5.5/build

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=/root/opencv_contrib-4.5.5/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -DOPENCV_GENERATE_PKGCONFIG=ON ..

make -j 4 && make install

配置环境

cd /etc/ld.so.conf.d
/bin/bash -c 'echo "/usr/local/lib64" > /etc/ld.so.conf.d/opencv.conf'
cp ~/opencv-4.5.5/build/unix-install/opencv4.pc /usr/lib64/pkgconfig/opencv.pc
ldconfig
/bin/bash -c 'echo export PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig > /etc/profile'
source /etc/profile

updatedb

验证是否安装成功

pkg-config --cflags  -- opencv4