this is a good source for face recognotion as well as detection

最小均方误差等算法的MSE的计算,Gabor小波变换与PCA的人脸识别代码，基于SVPWM的三电平逆变的matlab仿真。- Minimum mean square error MSE calculation algorithm, Gabor wavelet transform and PCA face recognition code, Based on SVPWM three-level inverter matlab simulation.