fileFolder = fullfile('F:\STUDY\CAFFE\测试图片');
dirOutput = dir(fullfile(fileFolder,'*.jpg'));
fileNames = {dirOutput.name};
OtpDir = 'F:\STUDY\CAFFE\result';%输出路径
OrgDir = 'F:\STUDY\CAFFE\2\result';
dirChange = dir(fullfile(OrgDir,'*.png'));
fileChange = {dirChange.name};
for i = 1:1:57
    bgFile = imread(fileChange{1,i});
    img = bgFile * 7;
    filename = fileNames{1,i};
    path = fullfile(OtpDir,filename);
    imwrite(img,path,'png');
end