These pictures are from previous solutions to the assignment. Have a look at some of the more unusual pictures. Use them as inspiration for your own transformations.
Chau Nguyen, Sharpen+Sharpen+Sharpen+fuzzy+invert+highlight Edges:
Chris Agerton, Shrink+Invert+Rotate Colors:
Jeffrey Zhu - Shrink+grow = fractal aliasing!
Matthew Dewet, Does Everything: (Click on image for detailed explanation and photos.)
Thomas Jack, Naor and Shamir’s visual cryptography:
Thomas Jack, "Matrix" transform:
Thomas Jack, image filling using 2d markov chains:
Algorithm 1: Efros
Amusing what the students can come up with, no?