Remove empty image file in a ImageDatastore

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Zzz 2021-8-6

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https://ww2.mathworks.cn/matlabcentral/answers/893912-remove-empty-image-file-in-a-imagedatastore

评论： Drishan Poovaya 2021-8-10

Screen Shot 2021-08-06 at 11.40.47 AM.png

I have a folder containing images, some of which are empty JPEG (Zero byte). How can I create a ImageDatastore and skip the null files?

I have tried using ReadFcn to create a custom read function, see below:

function data=readImages(filename)
    try % Fetch dimensions of a JPEG, error returned if it is null
        dim = infinfo(filename);
        data = imread(filename);
    catch error
        disp('Null data detected')  % Problem: need to define data value for this statement
    end
end

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Zzz 2021-8-6

The problem with the above approach is that it doesn't really skip the null files, since I still need to define what 'data' is.

Drishan Poovaya 2021-8-10

I understand you want to avoid including any empty jpg files. For reference purposes, could you please attach one of these empty jpg files? It would be helpful to come up with a solution

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