Group_Test1 is empty

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

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 = setdiff({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:np
	
	% Keep only folders:
	csf1 = csf1 +1; % one sub folder found
	SFN = sorted_cell_array_of_folder_names{i};% extract his name
	tifList = ls(fullfile('%s%s%s%s',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 = FULLFILE('%s%s%s',SFN,'\',tifFileName);
	Group_Test1 = Group_Test1(1:t-1); % Crop off any unused elements

end
%Group_Test1 = Group_Test1(1:t-1); % Crop off any unused elements

 save('Group_Test','Group_Test1');

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

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

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 ...

Answer 1

[Star Strider]

If ‘np’ is 0 (the cell array is empty), the loop is satisfied at the outset and never iterates. If ‘np’ is 1, the loop iterates one time, then stops.

Determine what ‘np’ is in order to solve this. Fixing that problem may be more involved.

.