Random display of 1 out of several images

Dear all,

I have a folder containing 8 images and I want matlab to choose only one of those images by random to display the picture in the center of the screen. The images are in the folder /congruent and are named for example "1.bmp" or "2.bmp".

I tried the follwing code, but it doesn't work as I don't really know how to access the images in the right way.

Thank you very much in advance!!

                    if trialcondition == 1 % congruent condition
                        randomnumber = randi([1 8]);
                        picture = imread(fullfile(pwd,'congruent',randomnumber,'*.bmp'));
                        imshow(pictue);
                        WaitSecs(1);
                    elseif trialcondition == 2 % incongruent condition
                        % here should essentially happen the same but with a different folder
                    end

Answer 1

[David Hill]

You could read all the images into a cell array (each image in an element), then:

for k=1:8
    imageCell{k}=imread([num2str(k),'.bmp']);
end
imshow(imageCell{randi(8)});

[Sophie Hanke]

This works! Thank you very much.