CALCULATION OF COLOR GAMUTS BASED ON THE NEUGEBAUER MODEL

The calculation of color gamuts is often based on transforming the col orant boundaries to color space. This method works for ''well behaved' ' processes, bur in some cases it is necessary to take into account no t only these physical boundaries, but also other-kinds of boundary sur faces. These additional boundaries are introduced here for 3-ink and 4 -ink processes and are called natural and hybrid boundaries. Examples of print processes for which these different kinds of boundaries shoul d be taken into account are given for the Neugebauer and localized Neu gebauer model. Finally, an analytical approach is presented for the ca lculation of color gamuts of ''well behaved'' processes based on the N eugebauer model. (C) 1997 John Wiley & Sons, Inc.