I need to create a nested struct from nested folders

I have some folders in the following way:

Folder 1

Folder 1.1

Folder 1.1.1

img 1.1.1.1

.

.

.

img 1.1.1.36 (between 35 to 37 imgs in each folder)

Folder 1.1.2

img 1.1.2.a

.

.

.

img 1.1.2.37 (between 35 to 37 imgs in each folder)

.

.

.

.

Folder 1.1.148098

I have to combine the img files to form videos. I am trying to create nested structures so that I can access the images (img 1.1.1.1. etc. in each folder). I have tried 'dir' but it does not create nested structures. These videos will be inputs for my ML model and I don't want to use multiple for loops if I can avoid it.

Specifically (apologies if I am providing redundant explanation), I want to do something like:

for i = 1: size(Folder1.Folder1.1.Folder1.1.1.Folder 1.1.1)

image= imread(Folder1.Folder1.1.Folder1.1.1.Folder 1.1.1.img1.1.1.i)

writevideo(v, image)

end

Any help is appreciated.

Answer 1

[Chunru]

% List all the file in current folder and subfolders
fn = dir('**/*');   % structure for the information of all the file

% fn is a structure with fields:
%      name: '.'
%      folder: 'C:\ABCD'
%        date: '01-May-2021 21:50:47'
%       bytes: 0
%       isdir: 1
%     datenum: 7.3828e+05

% Form/sort the image filename list based on fn according to your
% requirement

% Assume fn contains the files that can be used directly
for i=1:length(fn)
    if ~fn(i).isdir
        current_fn = fullfile(fn(i).folder, fn(i).name);
        % read file/write file
    end
end