Use the color information from one photo and the shape information from another to create a new photo. When you observe the world, what you see is how the world actually exists in 3-dimensional space, but another way of looking at the world is in the frequency domain, how often something appears is more significant than where it is. This app uses Fourier's to combine the color information of one photo with the shape information from another photo. Certain photos seem to mate well with others, but other photos don't seem to. I'm not really sure why. Maybe you can figure it out?