YUV图像合成原理

http://blog.csdn.net/zwz1984/article/details/50403150

http://zhongcong386.blog.163.com/blog/static/134727804201352610301922/

http://zhongcong386.blog.163.com/blog/static/1347278042013526104349588/?suggestedreading&wumii

http://blog.csdn.net/lzh445096/article/details/50527576

http://www.cnblogs.com/lidabo/p/3702039.html