Summary: Color Uniformity and Moire in Dispersed
Dot Halftone Masks Generated by Linear
Pixel Shuffling
Peter G. Anderson Jonathan S. Arney Mark S. Guittard
Rochester Institute of Technology, Rochester, NY, USA
Abstract
We investigate a method for combining two dis­
persed­dot halftoning masks for two colors that
generalizes the traditional angular displacement
used with clustered­dot halftone screens.
Our masks were two variations of the Linear
Pixel Shuffling algebraic mask algorithm involv­
ing numbers arising from two different third or­
der, Fibonacci­like recurrences, As an alternative
to screen rotation, these masks were repositioned
by flippng and rotating, and all pairwise posi­
tional combinations of the transposed, inverted
masks were used two at a time to generate cyan
and magenta images, each at nominal dot frac­
tions of 0.25. The resulting blue images were

Source: Anderson, Peter G. - Department of Computer Science, Rochester Institute of Technology

Collections: Computer Technologies and Information Sciences