中文说明：本代码在Matlab平台上实现了Sift算法，其中主要包括特征点提取与特征匹配两个环节，运行提取特征点文件，只需输入一张图片；若要先提取特征点再实现特征点的匹配，只需运行match函数，并输入相应的两幅图片，最后可将输出结果自选存储格式与位置。
English Description：
This code implements SIFT algorithm on MATLAB platform, which mainly includes feature point extraction and feature matching. To run the feature point extraction file, you only need to input a picture; to extract the feature points first and then realize the feature point matching, you only need to run the match function and input the corresponding two pictures. Finally, you can choose the storage format and location of the output results.