How to access images?

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mohammed mahmoud 2019-1-15

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https://ww2.mathworks.cn/matlabcentral/answers/439835-how-to-access-images

评论： Jan 2019-1-16

I have one folder contain 50K images, I want to cut a group (5000 image) of this images according to indexing numbers. For example [ 6, 9, 2000,40215,...]. How to code such this?

path='E:\CIFAR-10\train';
jpeg_files = dir(fullfile(path,'*.png'));
for cnt = 1 : 50000
    I{cnt} = imread(fullfile(path,jpeg_files(cnt).name));     
%     figure,imshow(I{cnt});
    for j=1:5000
        if cnt==class1num(1,j)
         imwrite(I{cnt},sprintf('%s%d.jpg','0',cnt));
        end
    end
end