A method for mapping a color specification to colorant amounts when a first and a second colorant have a similar hue involves the division of portions of color space into regions. Colors of the similar hue are rendered with a first colorant, a second colorant or a blend of the first and second colorants depending on which region of a color specification space the color specification is related. An image processor operative to map color descriptions via the method includes a colorant splitters operative to map a color description to colorant amounts for colorants of similar hue. In a xerographic environment, such an image processor includes a xerographic printer.
The invention relates to a mapping method, whereby color values of the color image to be mapped, represented in the RGB color space are mapped in the highlight-color color space, corresponding to a projection of the color values in highlight-color. The corresponding calculations are carried out in the RGB color space. A transformation into another color space is not necessary. Furthermore, various corrections are provided, such that a highlight color image is created which is as natural as possible for the human eye.
