非root用户安装
安装cmake
sudo apt-get install cmake
下载源码，要下载相同版本
opencv
https://github.com/opencv/opencv/releases
opencv_contrib
https://github.com/opencv/opencv_contrib/releases
放到相同路径并解压，也可以用git下载
git clone https://github.com/Itseez/opencv.git
准备编译
cd ~/opencv_path
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=your_opencv_install_path ..
make -j8 # -j8 runs 8 jobs in parallel.
make install
配置环境变量
vi .bashrc
文件末尾添加
export PATH="$PATH:your_opencv_install_path "
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:your_opencv_install_path /lib"
安装结束。
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