说明：  KL人脸识别的MATLAB代码，内有其源代码，详细可看http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=6995&objectType=file
(KL face recognition MATLAB code, which has its source code, detailed look at http :// www.mathworks.com/matlabcentral/fileex change/loadFile.do objectId = 6995)