How do you save one or all the images from an array as .png files in a folder.

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Oliver Ferenczi 2020-4-21

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编辑： Devineni Aslesha 2020-4-24

Hi, I have an array where there are 18 images stored making the array 18x4 double. I would like to be able to save these indivdual images in a folder. The number of images in the array will vary.

Is this possible? If so how can you do it?

Thank you

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Answer 1

Devineni Aslesha 2020-4-24

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编辑：Devineni Aslesha 2020-4-24

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Hi

To save the images from an array as .png files in a folder, please see the below code.

a = [zeros(9,4); ones(9,4);];
numImages = size(a,1);
workingDir = 'C:\Desktop\Images';
mkdir(workingDir);
for i=1:numImages
   baseFileName = sprintf('image%d.png',i);
   fullFileName = fullfile(workingDir,'images',baseFileName);
   imwrite(a(i,:),fullFileName);
end 