Abstract

A conventional color reproduction theories widely used in the color reproduction systems have been established by Yule et al.^[1]. However, some kinds of problems, such as the difference of the reproduced color between a color monitor and a color printer, have occured because these theories are based on the densitometoric color value and/or other device-dependent color representation. We now require a device-independent representation of color information to reproduce color accurately. That is, we should adopt CIEXYZ value or other colorimetric values for color reproduction theories. Furthermore, we require the mothod of transformation between device-dependent color representation and independent color representations. Laihanen and other investigator^{[4] [2]} attempted to establish the transformation method by using a Look-up-table and/or Neugebauer equations^[3] and indicated that these methods cannot be used for practical applications because of the problems such as accuracy of the transformation and/or calculation cost.

© 1992 Optical Society of America