This is a principal component analysis based facial expression recognition MATLAB code, code complete, easy to understand.

PCA_based+Face+Recognition\PCA_based Face Recognition System\CreateDatabase.m
..........................\.................................\EigenfaceCore.m
..........................\.................................\example.m
..........................\.................................\Readme.txt
..........................\.................................\Recognition.m
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..........................\.................................\.rainDatabase\1.jpg
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..........................\使用帮助：新手必看.htm
..........................\PCA_based Face Recognition System\TestDatabase
..........................\.................................\TrainDatabase
..........................\PCA_based Face Recognition System
PCA_based+Face+Recognition

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