MATLAB: How to rename images in a folder

images nametimestamp

Hello all,

I have several images named as:

Basler piA1000-60gm (22085941)_20190522_213447520_0001.bmp

Basler piA1000-60gm (22085941)_20190522_213447520_0002.bmp

…

I'd like to rename the images and keep the timestamp as:

20190522_213447520_0001.bmp

20190522_213447520_0002.bmp

or, if it is possible, I'd prefer rename the images with the timestamp when the images were created, for example using this format: 2019-05-22-21-34-47.520.

Thank you.

Best Answer

Ronny - let's assume that you have a list of file names (with or without a full path to the file). We can use strrep and movefile to replace the file name (remove the "prefix") and move the file respectively. For example,

for k = 1:length(myFilesToMove)
    fromFilename = myFilesToMove{k};
    toFilename = strrep(fromFilename, 'Basler piA1000-60gm (22085941)_', '');
    movefile(fromFilename, toFilename);
end

where myFilesToMove is a cell array of your different files that you want to rename.

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MATLAB: Rename files using matlab

You have

   d = 'C:\Users\krraz\Desktop\Day13\*.txt';

which includes the *.txt . You do not change d in your code. Later you have

   movefile(d,newnames{j},'f');

but d still has the *.txt part, so it is going to move all the text files instead of moving one at a time.

   projectdir = 'C:\Users\krraz\Desktop\Day13';
   dinfo = dir( fullfile(projectdir, '*.txt') );
   oldnames = {dinfo.name};
   unwanted = cellfun(@isempty, regexp(oldnames, '^[A-Z][^_].*') );
   oldnames(unwanted) = [];
   newnames = regexprep(oldnames, '^(.)', '$1_');
   for K = 1 : length(oldnames)
      movefile( fullfile(projectdir, oldnames{K}), fullfile(projectdir, newnames{K}) );
   end

MATLAB: How to convert a file name into a string

Filename = 'MyFile_12-25-2018.xls'
name = strsplit(Filename, '_');
name  = string(name{1,2});

Best Answer

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MATLAB: How to convert a file name into a string

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