??iNum_Train_PerSample?=?3;%訓練樣本數
??iNum_Test_PerSample?=?8;%測試樣本數
??iHeight?=?24;
??iWidth?=?24;
??iClass?=?15;%人臉特征類別數
??iNum_PerSample?=?11;%每一類所含樣本個數
??iDim_Image?=?iHeight?*?iWidth;
??Image?=?zeros（iDim_Image?iClass?iNum_PerSample）;%零矩陣
??
??fprintf（‘**********?Step?1?Read?Images?**********\n‘）;
??for?i?=?1?:?iClass
????for?j?=?1?:?iNum_PerSample
????????if?i???????????filestr?=?strcat（‘0‘?int2str（i））;%外部是連接字符串函數，內部是轉化為串
????????else
??????????filestr?=?int2str（i）;
????????end
????????str_Path_Image?=?[‘F:\FaceRecognitionSystem\人臉庫\YALE\subject‘?filestr];
????????str_Path_Image?=?[str_Path_Image?‘_‘];
????????str_Path_Image?=?[str_Path_Image?int2str（j）];
????????B?=?imread（str_Path_Image?‘bmp‘）;%讀取bmp格式的圖像到內存中
????????B=imresize（B[24?24]）;%對圖像進行縮放
????