Copy/rename cell array and then rename all images again

Hello,

currently my code to rename images in general looks like this:

function left(~)

[filenames, pathname] = uigetfile({'*.jpg'}, 'MultiSelect', 'on', 'Please select the left images');
fullFilenames1 = cellfun( @(x) fullfile( pathname, x ), filenames, 'UniformOutput', false );

for iFile = 1:numel(fullFilenames1)
  newName = sprintf('left%03d.jpg',iFile);
  movefile(fullFilenames1{iFile},newName);
end

All my images are called e.g.: left01 078, left01 079, left01 80.......

Now that we have two cameras, we also get these right images:

right01 078, right01 079, right01 80......

This means that the right images have to be renamed automatically, so that it would be easier for the user.

So just before the loop starts, my 'filenames' cell array needs to be duplicated, then the names inside need to be renamed from left01... to right01 but still containing the numbers at the end mentioned above.

Then the user has to choose: folder = uigetdir(); the directory where the right images are stored, so that it can add the path to the fullfile?????

And last but not least, another loop then renames the right images just like the loop before:

for iFile = 1:numel(fullFilenames2)
  newName = sprintf('right%03d.jpg',iFile);
  movefile(fullFilenames2{iFile},newName);
end

I tried to search for these things but I couldn't find any suitable answer as of yet.

[Adam]

Which aspect of it is causing the problem?

[Marcel Liphardt]

What do you mean by causing the problem?

I just would like to get some help to achieve all this.

Answer 1

[Stephen23]

Use regexprep or strrep, e.g.:

[filenames, pathname] = uigetfile({'*.jpg'}, 'MultiSelect', 'on', 'Please select the left images');
LNames = cellfun( @(x) fullfile( pathname, x ), filenames, 'UniformOutput', false );
RNames = strrep(LNames,'left','right');

It might be even simpler to use dir to get all of the filenames, then you do not force the user to select them all:

D = dir(fullfile(pathname,'left*.jpg'));
LNames = {D.name};

[Marcel Liphardt]

The user has to select a specific amount of images.

They can't use all of them, because we have over 100.

Ok, this is the first part but the directory is still from the left images.

Thats why now the user needs to use uigetdir()???

[Marcel Liphardt]

Now my whole function looks like this:

function left(~)

[filenames, pathname] = uigetfile({'*.jpg'}, 'MultiSelect', 'on', 'Please select the left images');

if (iscell(filenames) == 0 || numel(filenames) < 13)
    msgbox('Image selection cancelled or please select at least 14 images.','Information','warn');
    return;
end

LNames = cellfun( @(x) fullfile( pathname, x ), filenames, 'UniformOutput', false );
RRep = strrep(LNames,'left','right');

pathname1 = uigetdir();
RNames = cellfun( @(x) fullfile( pathname1, x ), RRep, 'UniformOutput', false );

for iFile = 1:numel(LNames)
  newName = sprintf('left%03d.jpg',iFile);
  movefile(LNames{iFile},newName);
end

for iFile = 1:numel(RNames)
  newName = sprintf('right%03d.jpg',iFile);
  movefile(RNames{iFile},newName);
end

But something seems to give me an error.

Error using movefile
No matching files were found.

Error in left (line 22)
  movefile(RNames{iFile},newName);

[Stephen23]

"Thats why now the user needs to use uigetdir()???"

It is not clear what your question is. If the right images are in a different folder then clearly you will need to identify that folder somehow, for example using uigetdir. If the right images are in the same folder as the left images then you can use the same pathname that you get from uigetfile. I do not know where all of these images are saved because you did not tell us.

Note that your code would be clearer if you got rid of the cellfun and simply called fullfile inside the loop:

txt = 'Please select the left images';
[Lnames, Pname] = uigetfile({'*.jpg'}, 'MultiSelect','on', txt);
Rnames = strrep(Lnames,'left','right'); % or regexprep for more control
for k = 1:numel(Lnames)
    movefile(fullfile(Pname,Lnames{k}), sprintf('left%03d.jpg',k));
    movefile(fullfile(Pname,Rnames{k}), sprintf('right%03d.jpg',k)),
end

[Marcel Liphardt]

Yeah ok, sorry that I didn't tell you.

So all my left images are stored in their own folder.

And all my right images are stored in their oe´wn folder as well.

[Stephen23]

Then you could do something like this:

txt = 'Please select the left images';
[Lnames, Lpath] = uigetfile({'*.jpg'}, 'MultiSelect','on', txt);
Rnames = strrep(Lnames,'left','right'); % or regexprep for more control
Rpath = uigetdir();
for k = 1:numel(Lnames)
    movefile(fullfile(Lpath,Lnames{k}), sprintf('left%03d.jpg',k));
    movefile(fullfile(RPath,Rnames{k}), sprintf('right%03d.jpg',k)),
end