1.到https://opencv.org/releases/下载源码 opencv-3.4.6.zip
2.安装必要的依赖库和包
sudo apt-get install cmake # 安装cmake
sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg.dev libtiff5.dev libswscale-dev libjasper-dev
3.切换到opencv-3.4.6目录
cd ~/Downloads/opencv-3.4.6
mkdir build
cd build #切换目录然后cmake指定安装路径
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..

4. 编译安装
make -j16


出现下面的错误:
/usr/bin/l
1247



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