MATLAB Answers

copying multiple images from one folder to other folder with conditions

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Hong Thien Dang
Hong Thien Dang on 29 Aug 2021
Commented: TADA on 29 Aug 2021
Dear Matlab Users
I have a folder with 14 pictures (C:\DT3\Pictures), i need to selected picture smaller than 512 x 512 pixel and copy it to SmallPicture.txt folder.
Thanks for the help!

Accepted Answer

Walter Roberson
Walter Roberson on 29 Aug 2021
Edited: Walter Roberson on 29 Aug 2021
sourcefolder = 'C:\DT3\Pictures';
destfolder = 'C:\DT3\Pictures\SmallPicture';
if ~isfolder(destfolder); mkdir(destfolder); end
dinfo = dir(sourcefolder);
dinfo([dinfo.isdir]) = []; %remove subfolders and . and ..
filenames = fullfile({dinfo.folder}, {dinfo,name});
nfiles = length(filenames);
for K = 1 : nfiles
thisfile = filenames{K};
try
info = imfinfo(thisfile);
if ~isempty(info) && isfield(info, 'Width') && isfield(info,'Height') && info.Width <= 512 && info.Height <= 512
copyfile(thisfile, destfolder);
end
catch ME
%not an image, or headers not readable or copyfile failed
end
end

More Answers (1)

TADA
TADA on 29 Aug 2021
use dir to loop through all files in the folder you mentioned.
use imfinfo to check the width and height of each image file in that folder.
use copyfile to copy the relevant files and mkdir if needed to create the SmallPicture directory
  2 Comments
TADA
TADA on 29 Aug 2021
Sir Roberson, your answer was posted about 2 hours ago, same as mine. Obviously, I wrote this answer while you wrote yours, hence i missed it. Honestly, this happens quite often and I fail to see why you reproach or tease me on that matter.

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