A New Model of Dot Gain and Its Application to a Multilayer Color Proof

The phenomenon of dot gain, whether physical or optical, has been studied greatly, with regard to printed inks. Off-press proofs must reasonably simulate printing gain in order to be predictive. Since the halftone colors of many off-press proofs are in multiple layers, optical gain will be much different from printed inks. This paper develops a new approach to the phenomenon of optical dot gain and examines the effect of multiple layers on gain, including the effect of screen resolution.