How can I remove . and ..

clear all
clc
sad = dir('D:\Project\DB1\test\');  % Returns both folders and files
% sad = dir(pwd);  % Returns both folders and files
cell_array_of_folder_names = {sad([sad.isdir]).name};  % Select folder names
% cell_array_of_folder_names( strncmp( cell_array_of_folder_names, ".", 1 ) ) = []; % Remove '.' and '..'
sorted_cell_array_of_folder_names = sort_nat( cell_array_of_folder_names );
% sorted_cell_array_of_folder_names = cell_array_of_folder_names; % if you don't have sort_nat
whos sorted_cell_array_of_folder_names
%----------------

[mp1, np] = size(sorted_cell_array_of_folder_names); % compute size = number of subfolders & files & . & ..
csf1=0; % counter of JUST subfolders found in PF
t=1;
Group_Test1 = zeros(1, mp1);
for i=1:mp1
	% Skip . and ..
	if endsWith(sorted_cell_array_of_folder_names{i}, '.') || endsWith(sorted_cell_array_of_folder_names{i}, '..')
		% Skip . and ..
		continue; % Skip to bottom of loop.
	end
	% Keep only folders:
	csf1 = csf1 +1; % one sub folder found
	SFN = sorted_cell_array_of_folder_names(i).name ;% extract his name
	tifList = ls(sprintf('%s%s%s%s',PF,SFN,'\','*.tif')); % list all jpg files
	[ms1, ns] = size(tifList); % ms = number of image files found
	
	% Processing for each tif file:
	
	for j=1:ms1
		tifFileName = tifList(j,:); % extract name of tif file
		% 			IM=imread([PF SFN '\' tifFileName]);
		%t=1;
		%for i=1:csf1
		% for j=1:ms1
					Group_Test1(t)={i};

		t=t+1;
	end
	PF_SFN_imgName = sprintf('%s%s%s',PF,SFN,'\',tifFileName);
	
end
Group_Test1 = Group_Test1(1:t-1); % Crop off any unused elements

 save('Group_Test','Group_Test1');

%----------------------

[Stephen23]

Tip: use FULLFILE to join strings into one filepath, rather than SPRINTF or string concatenation.

Answer 1

[Stephen23]

Replace

{sad([sad.isdir]).name}

with

setdiff({sad([sad.isdir]).name},{'..','.'})

[Walter Roberson]

Note that in theory using setdiff() like that could reorder the files. In practice it is unlikely to reorder the files (not impossible though.)

[Stephen23]

Given that the order returned by DIR is not specified, I don't see how that makes much difference.

[sun rise]

Name Size Bytes Class Attributes

sorted_cell_array_of_folder_names 1x937 110350 cell

Dot indexing is not supported for variables of this type.

Error in Untitled (line 24)

SFN = sorted_cell_array_of_folder_names(i).name ;% extract his name

>>

[sun rise]

This error after changes

[Walter Roberson]

Replace

	SFN = sorted_cell_array_of_folder_names(i).name ;% extract his name

with

    	SFN = sorted_cell_array_of_folder_names{i} ;% extract his name

[Walter Roberson]

In context the hypothetical reordering of setdiff() is irrelevant anyhow because the nat sort is done right afterwards ;-)

[sun rise]

It does not enter the for j loop, so Group_Test1 is empty

[sun rise]

[Walter Roberson]

Do you still have

	if endsWith(sorted_cell_array_of_folder_names{i}, '.') || endsWith(sorted_cell_array_of_folder_names{i}, '..')

if so then you can remove that test and the continue, since you already filtered out . and ..

[sun rise]

[Walter Roberson]

I recommend that you rewrite

	tifList = ls(sprintf('%s%s%s%s',PF,SFN,'\','*.tif')); % list all jpg files

in terms of dir() and fullfile()

I do not see where you have defined PF ?

Is there a reason you are not using

PF = 'D:\Project\DB1\test';
sad = dir(fullfile(PF, '*', '*.tif'));
cell_array_of_file_names = fullfile({sad.folder}, {sad.name});

and then cell_array_of_file_names would be the complete list of all .tif files that are one folder level down from DB1\test ?

[sun rise]

I want to order each folder separately and give all the pictures in it the same name or label

[sun rise]

First the folders are arranged, then all the pictures inside the folder are named with the same name. For example: The pictures in Volume 1 are all named with Name 1 ... and so on ...

[Walter Roberson]

[folders, basenames, ext] = fileparts(cell_array_of_file_names);
G = findgroups(folders);
[~, labels, ~] = fileparts(folders);

Now you for each entry cell_array_of_file_names{K} then its associated label is labels{K} and you can process all members of the same folder by processing

maxG = max(G);
for fidx = 1 : maxG
    matches = find(G == fidx);
    these_entries = cell_array_of_file_names(matches);
    this_label = labels{matches(1)};
    %these_entries is a cell array containing only file names
    %that are all part of the same folder, and the folder name
    %is in this_label
end

[sun rise]

clear all
clc

sad = dir('D:\Project\DB1\test\');  % Returns both folders and files 
cell_array_of_folder_names = {sad([sad.isdir]).name};  % Select folder names 
cell_array_of_folder_names( strncmp( cell_array_of_folder_names, ".", 1 ) ) = []; % Remove '.' and '..' 
folder_names = sort_nat( cell_array_of_folder_names );
%----------------
[folders, basenames, ext] = fileparts(cell_array_of_folder_names);
G = findgroups(folders);
[~, labels, ~] = fileparts(folders);

maxG = max(G);
for fidx = 1 : maxG
    matches = find(G == fidx);
    these_entries = folder_names(matches);
    this_label = labels{matches(1)};
    %these_entries is a cell array containing only file names
    %that are all part of the same folder, and the folder name
    %is in this_label
end

%save('Group_Test','Group_Test1');
%----------------------

Error using fileparts (line 37)

Input must be a row vector of characters or string scalar.

Error in Untitled3 (line 9)

[folders, basenames, ext] = fileparts(cell_array_of_folder_names);

>>

[Walter Roberson]

if ispc()
    PF = fullfile('D:\Project\DB1\test\', '*', '*.tif');
else
  %for demonstration purposes ONLY.
  
  %MATLAB Answers does not have nat_sort installed, so install it
  td = tempname;
  mkdir(td);
  tz = [td '.zip'];
  urlwrite('https://www.mathworks.com/matlabcentral/mlc-downloads/downloads/submissions/10959/versions/4/download/zip/sort_nat.zip', tz);
  unzip(tz, td)
  addpath(td)
  
  %now point us to a directory we know that some tif files are in
  PF = fullfile( fileparts(fileparts(which('cameraman.tif'))), '**', '*.tif');
end

sad = dir(PF);  % Returns files only 
cell_array_of_file_names = fullfile({sad.folder}, {sad.name});
[folders, basenames, ext] = fileparts(cell_array_of_file_names);
G = findgroups(folders);
[~, labels, ~] = fileparts(folders);

Groups = struct();

maxG = max(G);
for fidx = 1 : maxG
    matches = find(G == fidx);
    these_entries = cell_array_of_file_names(matches);
    these_entries = sort_nat( these_entries );

    this_label = labels{matches(1)};
    %these_entries is a cell array containing only file names
    %that are all part of the same folder, and the folder name
    %is in this_label
    Groups.(this_label)  = these_entries;
end

Groups

Groups = struct with fields:
    imdata: {1×33 cell}

Groups.(this_label).'

ans = 33×1 cell array
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_01.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_02.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_03.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_04.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_05.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_06.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_07.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_08.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_09.tif'}
    {'/MATLAB/toolbox/images/imdata/AT3_1m4_10.tif'}
    {'/MATLAB/toolbox/images/imdata/autumn.tif'    }
    {'/MATLAB/toolbox/images/imdata/board.tif'     }
    {'/MATLAB/toolbox/images/imdata/cameraman.tif' }
    {'/MATLAB/toolbox/images/imdata/canoe.tif'     }
    {'/MATLAB/toolbox/images/imdata/cell.tif'      }
    {'/MATLAB/toolbox/images/imdata/circbw.tif'    }
    {'/MATLAB/toolbox/images/imdata/circuit.tif'   }
    {'/MATLAB/toolbox/images/imdata/eight.tif'     }
    {'/MATLAB/toolbox/images/imdata/forest.tif'    }
    {'/MATLAB/toolbox/images/imdata/hotcoffee.tif' }
    {'/MATLAB/toolbox/images/imdata/kids.tif'      }
    {'/MATLAB/toolbox/images/imdata/logo.tif'      }
    {'/MATLAB/toolbox/images/imdata/m83.tif'       }
    {'/MATLAB/toolbox/images/imdata/mandi.tif'     }
    {'/MATLAB/toolbox/images/imdata/moon.tif'      }
    {'/MATLAB/toolbox/images/imdata/mri.tif'       }
    {'/MATLAB/toolbox/images/imdata/paper1.tif'    }
    {'/MATLAB/toolbox/images/imdata/pout.tif'      }
    {'/MATLAB/toolbox/images/imdata/shadow.tif'    }
    {'/MATLAB/toolbox/images/imdata/spine.tif'     }

[sun rise]

>> Untitled3

Error using fileparts (line 37)

Input must be a row vector of characters or string scalar.

Error in Untitled3 (line 21)

[folders, basenames, ext] = fileparts(cell_array_of_file_names);

>>