基于SIFT的特征点提取源代码，凑下字数-SIFT-based feature points to extract the source code, collected under the words

sift特征点提取源代码，已经过调试运行，下载后即可应用，代码也可作为参考。-sift feature point extraction source code, it has been testing the run, you can download the application, the code can be used as a reference.