PCA人脸识别系统：基于MATLAB实现

%**********************************************
% Title : PCA for face recognition
% Version : 1.0 final
% Submit Time : 2011-04-09
%**********************************************

% %%%%%%%%%%%%%%%%%%%%%%INITIAL
clear all
clc
close all

% %%%%%%%%%%%%%%%%%%%%%%Some variables according to the Yale Face DB
Num_subject = 15;
Num_image = 11;
Train_num_image = 8;                    %for every subject we choose 8 to train
Test_num_image = 9;                     %choose the left 3 images to test

% %%%%%%%%%%%%%%%%%%%%%%Load Data
Data = [];
for i=1:Num_subject
    for j=1:Train_num_image
        path = sprintf('FaceDB_yaleA/%03d/%02d.jpg',i,j);
        pic = imread (path);            %read one picture
        
        %Make Data ,Add pic into Data
        pic_line = pic(1:147*137);      %The pic size is 147*137
                                        %pic_line is 1*N ,N=147*137. from up to
                                        %down,left to right.
                                        %Reshape 2D image to 1D image
                                        %vectors