How can I pull a random image to display, from a folder of images using Psychtoolbox?
7 views (last 30 days)
Show older comments
Hello,
I am trying to show an image, randomly selected from a folder of images. I'm using Psychtoolbox. How do I instruct it to pull an image randomly from the folder, to display on the screen? The images can be used more than once.
Thanks!!
0 Comments
Accepted Answer
Orion
on 4 Nov 2014
Edited: Orion
on 4 Nov 2014
I don't know this toolbox (not sure a lot of people do).
but in a general way, with matlab, you can do something like
% get all images (here all *.jpg found in the current directory, but you can specify the format you want)
MyImages = dir(fullfile(pwd,'*.jpg'));
% generate a random number between 1 and the number of images
RandomNumber = randi([1 size(MyImages,1)]);
% get the corresponding name of the image
MyRandomImage = MyImages(RandomNumber).name;
% display the image
image(imread(MyRandomImage));
0 Comments
More Answers (1)
Sean de Wolski
on 4 Nov 2014
Perhaps use randi to generate a random index between 1 and the number of files.
0 Comments
See Also
Categories
Find more on Image display and manipulation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!