基于PCA的人脸识别

代码说明：

说明：  基于pca，对耶鲁人脸数据库进行训练，建立特征空间，对待识别的人脸投影到特征空间中，选择欧式距离最短的人脸，来实现人脸匹配。(Based on pca, the Yale Face Database is trained, the feature space is established, and the recognized face is projected into the feature space, and the face with the shortest European distance is selected to achieve face matching.)