Simulating Film Grain using the Noise Power Spectrum
This source preferred by Ian Stephenson
Authors: Stephenson, I.
Journal: Eurographics UK
Adding grain to simulated images makes them look more exciting. While its relativly easy to add some noise, here we use the principles developed by imaging scientists to produce grain which is theoretically "correct". While the results are usefull, they also illustrate the limitations of current photographic theories of grain.