I am looking for a program that does what I will describe below.

You have a database of different images. Program randomly selects 2 images at the time and shows them up on the screen. You select the one you like better. Program goes over round of random selections and each time you select the one image you like better. At the end of x rounds you can see results, and see how many times each was selected.

I need the the program for a survey which determines visual preference of certain images, and doing manually would be time consuming.

If anybody knows the name of the program or a similiar one (or even a Windows program) please tell me.

Best regards