中文说明：包括pca和lda两个文件，先用pca降维后进行lda进行分类，用于人脸识别，实验结果很好。
English Description：
PCA and LDA are included in this paper. First, PCA is used to reduce dimension, and then LDA is used for face recognition. The experimental results are very good.
After PCA dimension reduction, LDA is used for face recognition
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中文说明：包括pca和lda两个文件，先用pca降维后进行lda进行分类，用于人脸识别，实验结果很好。
English Description：
PCA and LDA are included in this paper. First, PCA is used to reduce dimension, and then LDA is used for face recognition. The experimental results are very good.