OpenCV中文网站
http://www.opencv.org.cn/index.php/%E9%A6%96%E9%A1%B5
Installing OpenCV on Windows 7 for Python 2.7
http://stackoverflow.com/questions/4709301/installing-opencv-on-windows-7-for-python-2-7
Install OpenCV-Python in Ubuntu
https://docs.opencv.org/3.4.1/d2/de6/tutorial_py_setup_in_ubuntu.html
OpenCV DevZone
http://code.opencv.org/projects/opencv/wiki
OpenCV User site