一个完整的PCA算法实现，从人脸的读取，规格化，均值计算。最后，提示输入例子验证。-A complete PCA algorithm realization, from face read, normalization, mean calculation. Finally, prompting the input example verification.

The INFace (Illumination Normalization techniques for robust Face recognition) toolbox v2.0 is a collection of Matlab functions and scr ipts intended to help researchers working in the field of face recognition.