We are doing a project in Intro to Computer Art class on Surrealism and Dada... Using Photoshop we are blending 2 or more layers together using the blend mode... in this case I used the Difference mode. I did this set as a demonstration for my students.
Thanks Kendra. The unit on Surrealism and the Unconscious we are doing at Albertus prompted this set... you are right though, I normally wouldn't be doing work like this.