MATLAB Central Newsreader - Read image fromsequence of folders

Read image fromsequence of folders

Smith S — Sat, 18 Oct 2008 07:31:01 -0400

Hi anyone help me how to read and process image files in the sequence of folder like folder1 has 5 files and folder2 has 5 files and folder3 has 5 files and so on continously like a sequence.this will be helpful for training the database.

Re: Read image fromsequence of folders

Piter_ — Sat, 18 Oct 2008 10:38:58 -0400

On Oct 18, 10:31=A0am, "Smith S" <x...@yahoo.com> wrote:
> Hi anyone help me how to read and process image files in the sequence of =
folder like folder1 has 5 files and folder2 has 5 files and folder3 has 5 f=
iles and so on continously like a sequence.this will be helpful for trainin=
g the database.

I don't know what kind of image and how you read them, but to load in
sequence I use "for loop".
if files differ in names like file_name.1 file_name.1 file_name.3....
path_folder=3D['path/folder1/'; 'path/folder2/'; 'path/folder3/';];

for i=3D1:length(path_folder(:,1))

     for u=3D1:5
         cd(path_folder(i))
         file_name=3D['file_name.' num2str(i)];
         eval([a ' num2str(i) num2str(u)
'=3Dcommand_to_load_image(filename)'];
end
end

You can play with output of dir (or ls) command if files don't have
pattern in names.

Hope it helps
Best.
Petro.

Re: Read image fromsequence of folders

Bruno Luong — Sat, 18 Oct 2008 12:20:04 -0400

Piter_ <x.piter@gmail.com> wrote in message <2be4f27f-d0a8-454b-b92b-e9a5440373fa@e2g2000hsh.googlegroups.com>...

> eval([a ' num2str(i) num2str(u)
> '=3Dcommand_to_load_image(filename)'];

Do we really need call for this ugly EVAL?

Why not using cell or struct to store the list of things of different kinds and sizes?

Bruno