Group files with same names

I have a folder with images of different models of cars(20 to be specific). For each car model I have 100 sample images. They are all in a single folder and named:

Audi_01, Audi_02, ...... , Audi_100

Lexus_01, Lexus_02 ...., Lexus_100

...

How can I group same model cars and put them in a new folder.

I tried : copyfile Audi*.jpg Audi

But, for that I have to type and run the command for 20times.

Is there any alternative way or command in matlab?

Answer 1

[Jan]

Folder   = 'D:\Your\Data\Folder';
FileList = dir(fullfile(Folder, '*.jpg'));
FileName = {FileList.name};
Name     = unqiue(strtok(FileName, '_'));

for iName = 1:numel(Name)
   mkdir(fullfile(Folder, Name{iName}));
   match = startsWith(FileName, [Name{iName}, '_']);
   Group = FileName(match);
   for iGroup = 1:numel(Group)
       copyfile(fullfile(Folder, Gorup{iGroup}), fullfile(Folder, Name{iName}));
   end
end

[HPL]

This code almost worked.

I have a several groups named in a different way, like

Chevrolet_camaro_01, 02,03....

and

Chevrolet_Colorado_01,02,03

But, according to the code, "FileName" variable takes both of them in a single variable "Chevrolet"

[Stephen23]

Try:

Name = unique(regexprep(FileName,'_*\d+$',''));

[HPL]

This code isn't working.

"Name" is storing all the file names rather than storing unique filenames

The error I am getting is:

Unable to create directory.

• " *.jpg " already exists as a file.

[Stephen23]

@HPL: please save the cell array FileName in a .mat file and upload it by clicking the paperclip button.