Matlab Processing Sequentially Numbered Images -


this question has answer here:

i have 1000 images started img0.png, img1.png, img3.png, ..., img1000.png. using matlab , code following:

    imagenames = dir(fullfile(workingdir,'*.png'));

so imagenames struct contains following

img0.png

img1.png

img10.png

img100.png .......

but want

img0.png

img1.png

img2.png .......

is possible programmatically in matlab?

regards

if you're trying convert filenames you've said in comment. can use regexprep list of new filenames corresponding old filenames.

newnames = regexprep({imagenames.name},'(img)(\d*)(\.png)','$1${sprintf(''%04d'', $2)}$3')

essentially, pulls out numeric part of each filename, , runs through sprintf 0 pad suggested (4 digit zero-padding).

if want re-save images these new names, can in loop.

for k = 1:numel(imagenames);     movefile(imagenames(k).name, newnames{k}); end

if want, can sort newnames variable , sort naturally now.

[values, sortinds] = sort(newnames); sortednames = imagenames(sortinds);

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