这是SIFT算法详解博文中附录2 http://blog.csdn.net/zddmail/article/details/7521424 源码包括高斯模糊实现，sift的实现细节
资源文件列表
sift/descriptor.txt , 119361
sift/jobs_512.jpg , 102248
sift/readme.txt , 117
sift/sift.exe , 44032
sift/sift.sln , 879
sift/sift.suo , 28672
sift/sift/bbb.jpg , 5764
sift/sift/descriptor.txt , 119361
sift/sift/dy.jpg , 61440
sift/sift/jobs.jpg , 40940
sift/sift/jobs_512.jpg , 102248
sift/sift/lena.jpg , 69214
sift/sift/main.cpp , 689
sift/sift/nn.jpg , 5160
sift/sift/psu.jpg , 142590
sift/sift/Release/sift.log , 86
sift/sift/sift.cpp , 36494
sift/sift/sift.h , 2674
sift/sift/sift.vcxproj , 4839
sift/sift/sift.vcxproj.filters , 1164
sift/sift/sift.vcxproj.user , 143
sift/sift/vv.jpg , 4794
sift/sift/xxxx.jpg , 2399
sift/sift/zz.jpg , 29805