sift算法是提取特征点的经典算法，本代码全面实现了sift算法，以及特征点匹配-sift algorithm is a classic feature point extraction algorithm, the code sift the full realization of the algorithm, as well as the matching feature points

本代码是应用sift算法进行的特征点匹配与配准，可以应用于图像拼接，人脸识别等等，用法非常强大。可以运行-This code is matched with the feature point registration application sift algorithm can be applied to the image stitching, face recognition, etc., usage is very powerful. You can run

sift 特征匹配实现 人脸识别 特征点 匹配()