基于PCA算法的人脸识别完整算法，可运行，按提示输入训练数据库和测试数据库，及待识别的图片，即可将识别结果返回，文件中包含ORL人脸库-Complete face recognition algorithm based on PCA algorithm can be run, follow the prompts to enter the training and test s, and the image to be recognized, you can return the recogni