displaying images in random order using 'imread' function

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BA ，2022-9-21

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https://ww2.mathworks.cn/matlabcentral/answers/1809390-displaying-images-in-random-order-using-imread-function

评论： BA ，2022-9-21

I'd like to write a program that displays these images I've attached to this post in random order. I know how to use the function imread to display these images, but I'm not sure how to write a program that displays them in a random order.

I think possibly utilizing a loop may help but I can't figure it out.

imread('brain-lateral.png');
imread('download.jpeg');
imread('brainlobesanatomy.jpeg');
imread('download2.jpeg');

Thanks

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Answer 1

Karim 2022-9-21

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https://ww2.mathworks.cn/matlabcentral/answers/1809390-displaying-images-in-random-order-using-imread-function#answer_1057925

编辑：Karim 2022-9-21

one method could be the following:

% number of images
numImg = 4;
% random permutation of the integers 1:numImg
imgIdx = randperm(numImg)
imgIdx = 1×4
     3     2     1     4
% loop over all images
for i = 1:numImg
    % pick the current random index
    currImg = imgIdx(i);
    % read an image based on the random index
    switch currImg
        case 1; imread('https://nl.mathworks.com/matlabcentral/answers/uploaded_files/1131875/brain-lateral.png');
        case 2; imread('https://nl.mathworks.com/matlabcentral/answers/uploaded_files/1131880/download.jpeg');
        case 3; imread('https://nl.mathworks.com/matlabcentral/answers/uploaded_files/1131890/brainlobesanatomy.jpeg');
        case 4; imread('https://nl.mathworks.com/matlabcentral/answers/uploaded_files/1131895/download2.jpeg');
    end
end