http://zhaoxuhui.top/blog/2018/05/18/OpenCV_Contrib.html
1、python3.7安装
sudo apt install python3.7
2、将python3指向python3.7
cd /usr/bin
sudo rm /usr/bin/python3
sudo ln -s python3.7 python3
3、pip安装 必须跟着改
sudo apt-get install python-opencv
4安装OPENCV
pip install
pip install opencv-contrib-python
原文:https://www.cnblogs.com/kekeoutlook/p/14300752.html