face recognition by PCA. using algorithm PCA and HMM. good for you

(主成分分析)Jacobi法求解对称矩阵的特征值及特征向量-(PCA)Finding the eigenvalues and eigenvectors of symmetric matrices, applying Jacobi s method

本程序实现人脸对齐功能，它通过提取人脸特征，利用PCA降维，实现人脸对齐效果-This program implements the face alignment feature, it is through facial feature extraction using PCA dimensionality reduction to achieve the effect of face-aligned