1-
http://www.cnblogs.com/starfire86/p/5735061.html
http://www.xuebuyuan.com/893792.html
http://blog.csdn.net/honpey/article/details/8639617
8-高斯金字塔
原文：http://www.cnblogs.com/yangyangthss/p/7068081.html
