http://lib.csdn.net/article/opencv/33264 http://blog.csdn.net/laohu_tiger/article/details/17359777 http://blog.csdn.net/qq_29540745/article/details/52487832
http://lib.csdn.net/article/opencv/33264
http://blog.csdn.net/laohu_tiger/article/details/17359777
http://blog.csdn.net/qq_29540745/article/details/52487832
scalar、图像通道、分离、合成通道
原文：http://www.cnblogs.com/qinguoyi/p/7616517.html
