I have a folder splitted.frames, It contains subdirectories like "21434343", "125521","25778" and so on. (random numbers as sub-directory name) Each subdirectory have thousand of images.

I need to make, my code generic that it read all subdirectories one by one and I have written a piece of code that work really fine for single directory and process all files in it. How should a program select sub-directory one by one. please help me out.

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

master_folder = 'splitted.frames';
master_dinfo = dir(master_folder);
master_dinfo = master_dinfo([master_dinfo.isdir]);

now master_dinfo contains information only for subdirectories and you can loop

   for K = 1 : length(master_dinfo)
     this_folder_name = master_dinfo(K).name;
     if this_folder_name(1) == '.'; continue; end   %skip '.' and '..'
     subdir_name = fullfile(master_folder, this_folder_name);
     subdir_dinfo = dir(subdir_name);
     subdir_dinfo([subdir_dinfo.isdir]) = [];   %remove directories
     for L = 1 : length(subdir_dinfo)
       this_filename = fullfile( subdir_name, subdir_dinfo(L).name );
       ... now process this_filename
     end
   end