找到opencv某個版本的源碼文件，進入build目錄；
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*
之后再刪除源碼目錄即可；
https://docs.opencv.org/trunk/d7/d9f/tutorial_linux_install.html