ubuntu18.04 卸载opencv3.4.5

1、查看已安装的opencv版本

pkg-config --modversion opencv

2、卸载
首先要找到当初安装opencv的build目录（如果没有需要重新编译），进入该build目录执行卸载操作：

sudo make uninstall
cd  ..
sudo rm -r build

3、删除其余的

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