SIFT
代码说明：
MATLAB实现图像的SIFT特征提取，并做在不同光照、不同视角下的特征匹配(SIFT MATLAB for image feature extraction, and to do in different lighting, different from the Perspective of feature matching)
文件列表：
demo-data
.........\view02.png,574557,2003-04-25
descriptor
..........\do_descriptor.asv,5423,2010-06-03
..........\do_descriptor.m,5412,2010-06-03
do_demo_1.m,949,2010-05-30
do_demo_2.m,1156,2010-05-19
do_demo_3.m,1171,2006-11-20
do_demo_4.m,1168,2010-05-19
do_sift.m,3816,2010-06-03
key-location
............\do_extrefine.m,4322,2010-06-03
............\do_localmax.m,2133,2010-05-30
main.m,140,2006-05-04
match
.....\do_match.asv,4949,2010-06-16
.....\do_match.m,5001,2010-06-16
orientation
...........\do_orientation.m,2505,2010-05-31
README.txt,2387,2006-11-20
scale-space
...........\do_diffofg.m,464,2006-11-14
...........\do_gaussian.m,2964,2010-05-30
...........\smooth.m,215,2006-11-14
sift_demo.m,1698,2010-05-18
util
....\appendimages.m,359,2006-11-15
....\imreadbw.m,301,2006-11-16
....\plotsiftframe.m,1812,2010-06-03
....\plotss.m,640,2006-11-20
....\tightsubplot.m,1859,2006-11-20
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