How to retrieve images with the same name from multiple folders?
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I have nine different folders, each containing hundreds of images. I suspect there are a few images with the same names that are present in two or more folders. How do I retrieve only those images that are present in these nine different folders?
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Walter Roberson
2018-7-12
Untested.
projectdir = '/Users/siv/PhD/part11';
dinfo = dir(projectdir);
dinfo(~[dinfo.isfolder]) = []; %remove non-folders
dinfo( ismember({dinfo.name}, {'.', '..'}) ) = []; %delete . and ..
subdirnames = {dinfo.name};
fqsubdirnames = fullfile(projectdir, subdirnames);
numsubs = length(subdirnames);
subinfo = cell(numsubs, 1);
for K = 1 : numsubs
thisinfo = dir(fqsubdirnames{K});
thisinfo( [thisinfo.isdir] ) = []; %remove folders. This includes . and ..
subinfo{K} = {thisinfo.name};
end
allnames = horzcat(subinfo{:});
numents = cellfun(@length, subinfo);
group_breakpoints = cumsum([1; numents(:)]) .' ;
[unames, ~, uidx] = unique(allnames);
counts = accumarray(uidx, 1);
dupidx = find(counts > 1);
if isempty(dupidx)
fprintf('No duplicate names!\n');
else
fprintf('Some duplicates found!\n\n');
for K = 1 : length(dupidx)
orig_idx = find(uidx == dupidx(K));
[~, folderidx] = histc(orig_idx, group_breakpoints);
fprintf('file "%s" found in the following folders:\n', unames{dupidx(K)} );
fprintf(' %s\n', subdirnames{folderidx} );
end
fprintf('\n');
end
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Image Analyst
2018-7-13
Images can have the same name and not be duplicates so you might want to check the dates, CRC, etc. Just construct the output folder name, full file name, and then call imwrite():
Something like
outputFolder = '/Users/siv/PhD/part11/Duplicate Images' % Wherever you want.
baseFileName = sprintf('duplicate_%s', originalBaseFileName);
fullFileName = fullfile(outputFolder, baseFileName);
imwrite(theImage, fullFileName);
Obviously make needed variable name changes as appropriate.
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