中文说明：基于ORL人脸库的LDA+PCA+Knn人脸图像识别算法，能够精确地达到识别人脸的目的。最高可达到100%的实验检测结果。本人亲自尝试，效果很好的。
English Description：
ORL face database based on LDA+PCA+Knn face recognition algorithm can accurately achieve the purpose of identifying the human face. The highest can reach 100% of the experimental results. I personally try, the effect is very good.