用c++与OPENCV结合在一起的SIFT算法源码，看了后会很有用-OPENCV with c++ together with the SIFT algorithm source code, can be useful after reading

SIFT算法代码，C++的，确认可用，并提供opencv和gsl以及相关安装方法-SIFT algorithm code, C++ confirmation available, and provide opencv and gsl installation method