Question

i wrote a code that analyze a video file and then plot data on a graph then
save this graph into
excel and jpg.

but my problem is that i have more than 200 video to analyze in around 20 folder,

so i need to automate this code to loop inside folders and analyze each *.avi file inside and

.. So any ideas or suggestions

Really appreciate your help

I need to know how to loop folders and get files inside and the apply a function to these files in that folder

Please note that my function that i also want to save graph result to img, should i then include full path while saving ? and how can i do it ?

Answer 1

The dir and fullfile commands are what you need. Depending on your directory structure, something like this:

video_dir = 'videos';

% I'm not sure if there's a way to directly get a list of directories, but
% this will work
video_dir_children = dir(video_dir);
video_subdirs = [];
for ix = 1 : length(video_dir_children),
  % note we're careful to kick out '.' and '..' 
  %   (and any other directory starting with a '.')
  if(video_dir_children(ix).isdir && video_dir_children(ix).name(1) ~= '.')
    video_subdirs = [video_subdirs; video_dir_children(ix)];
  end
end

for ix = 1 : length(video_subdirs),
  this_dir = fullfile(video_dir, video_subdirs(ix).name);
  avi_files_in_this_dir = dir(fullfile(this_dir, '*.avi'));

  for jx = 1 : avi_files_in_this_dir,
    doVideoProcessing(fullfile(this_dir, avi_files_in_this_dir(jx).name));
  end

end