找到opencv某个版本的源码文件，进入build目录；
cd opencv_build sudo make uninstall cd .. sudo rm -r build sudo rm -r /usr/local/include/opencv2 /usr/local/include/opencv /usr/include/opencv /usr/include/opencv2 /usr/local/share/opencv /usr/local/share/OpenCV /usr/share/opencv /usr/share/OpenCV /usr/local/bin/opencv* /usr/local/lib/libopencv*
之后再删除源码目录即可；
https://docs.opencv.org/trunk/d7/d9f/tutorial_linux_install.html