去年暑假编的SIFT特征提取算法，步骤作了详细叙述，其中用到几个OPENCV读取图片函数。解压密码jlh。-last summer addendum to the sciences feature extraction algorithm, described in detail the steps, Some of them used to read Photo OPENCV function. Jlh extract passwords.

基于opencv的 orb特征点匹配的算法实例 比sift suft快很多-Opencv orb feature points matching algorithm instance is much faster than sift suft