How to present images i random order?

Hi,

I have 10 images and want to present it in random order.

Since there are other images in that folder, I want to specify the pictures which are presented, and then want to show it in random sequence.

How to do it?

Appreciate.

Answer 1

[KSSV]

files = dir('*.jpg') ;   % all jp gimages in folder 
N = length(files) ;      % total files 
idx = randperm(N) ;      % random order of numbers till N 
for i = 1:N              % loop for each file
    files(idx(i)).name
end

[M Min]

I guess, in that way, some other images that are not gonna present would be included. Isn't it?

[KSSV]

It picks all .jpg files....if you want a selected files, make them a cell and run the loop.

files = {'apple' 'ball' 'cat' 'dog' 'egg'} ;
N = length(files) ;

idx = randperm(N) ;
for i = 1:N
    files{idx(i)}
end

[dbmn]

And if you want a random but repeatable sequence you could set the seed for the random number generation before KSSVs script using

 rng(1);

This way the sequence is random but you can always reconstruct the exact same sequence using the same seed (in our case 1).

[M Min]

Thanks a lot!!!