sift算法实现
............\appendimages.m
............\left.bmp
............\left.JPG
............\left.pgm
............\left1.jpg
............\main.asv
............\main.m
............\main2.m
............\match.m
............\mosaic.m
............\OK.jpg
............\right.bmp
............\right.JPG
............\right.pgm
............\right1.jpg
............\sift.m
............\siftWin32.exe
............\tmp.key
............\tmp.pgm