The VLFeat open source library ，可以用来进行HOG,SIFT等，这是最新版的VLFeat-The VLFeat open source library implements popular computer vision algorithms including HOG, SIFT, MSER, k-means, hierarchical k-means, agglomerative information bottleneck, SLIC superpixels

本代码使用Opencv开源库实现，首先使用sift算子进行特征点提取，然后使用opencv中的三角剖分函数以所提取的特征点为基本点进行三角剖分。-This code uses Opencv open source library implementation, first using sift operator the feature point extraction and use of triangulation opencv functions to the extracted featu

基于open cv的sift算法提取图像特征值的python程序(Python algorithm based on open CV's SIFT algorithm to extract image eigenvalues.)