这是基于PCA的人脸识别，用MATLAB编写，包含了K-L变换，奇异值分解等方法，且采用了最小距离分类器-This is based on the PCA face recognition, using MATLAB to prepare, including the KL transform, singular value decomposition and other methods, and the use of the minimum distance classifier

最小距离分类器，可以用于做对比算法，人脸识别中经常用(The minimum distance classifier can be used for comparison algorithms)