http://blog.csdn.net/sunny2038/article/details/9057415
http://blog.csdn.net/yang6464158/article/details/22214787
http://python.jobbole.com/85178/
sudo apt-get install libcv-dev
sudo apt-get install python-opencv
http://blog.csdn.net/sunny2038/article/details/9057415
http://blog.csdn.net/yang6464158/article/details/22214787
http://python.jobbole.com/85178/
sudo apt-get install libcv-dev
sudo apt-get install python-opencv