SURF/SIFT特征点图像匹配示例

1该代码改编至opencv3.1的例程，可以实现根据SURF/SIFT特征点进行图像匹配，原例程路径为：opencv_contrib\modules\xfeatures2d\samples\surf_matcher.cpp。2.代码运行环境：VS2013,opencv3.1，且需要单独编译与该版本匹配的opencv_contrib。编译方法请参考http://livezingy.com/compile-opencv-and-opencv_contrib/