Want to convert hyperspectral .mat file to multiple .jpeg files

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Yogesh Awate 2017-11-15

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回答： Rik 2017-11-16

Please help me to create multiple images(.jpeg) based on each band. In PaviaU.mat which has 610x340x103, i want extract 103 images out of it. Thank you. PaviU.mat

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Answer 1

Rik 2017-11-16

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https://ww2.mathworks.cn/matlabcentral/answers/367183-want-to-convert-hyperspectral-mat-file-to-multiple-jpeg-files#answer_291384

在 MATLAB Online 中打开

You can just use indexing.

for n=1:103
    IM_slice=A(:,:,n);
    imwrite(IM_slice,sprintf('%03d.jpeg',n));
end

Are you sure you want to do this? JPEG is lossy, which means you will be losing quality. If file size isn't a major concern, consider a lossless file format, like png. especially if you intend to do processing on the images instead of the original hypercube (which is what you should use for further processing).