sift算法实现，可以实现图像的配准，大量的特征点的寻找
资源文件列表
zoo_appendingImages.m , 455
zoo_BidirectionalMatch.m , 848
zoo_drawPoints.m , 201
zoo_drawRotAglHist.m , 195
zoo_getRotAgl.m , 104
zoo_getTransMat.m , 1162
zoo_imRegist.m , 1521
zoo_linePoints.m , 479
zoo_main.m , 724
zoo_optIndex.m , 334
zoo_sift.m , 1925
zoo_x2gray.m , 138
siftWin32.exe , 94208
x2gray.m , 134