中文说明：通过pac降维，然后求出几个主成份后，按照空间距离的大小来判断所读取的图片是否为同一人的图片，当训练百分比为75%时准确率可达100%。所用的图片库为orl下载的人脸图库。
English Description：
By pac dimensionality reduction, and then find a few main ingredients, in accordance with the size of the spatial distance to determine whether it is read by the same person picture pictures, when the percentage was 75% when the training accuracy rate of up to 100%. Photo gallery used for orl download Face Gallery.