Matlab批量修改圖像獲得指定區域

[FileName,PathName,FilterIndex] = uigetfile(...
    {'*.jpg', 'JPG-files';...
    '*.bmp','BMP-files';...
    '*.png','PNG-files';...
    '*.*','All files'},...
    'Pick All Picture You Want',...
    'MultiSelect','on');
num = length(FileName)
for ii=1:num
     file_dir=fullfile(PathName,FileName{ii});
     h=imshow(file_dir);
     I=imcrop(h);
     imwrite(I,[num2str(ii),'.bmp'],'bmp');
     g=imshow(file_dir);
     J=imcrop(g);
     imwrite(J,[num2str(ii+num),'.bmp'],'bmp');
     close all
end