Patent ID: 8395831

Claim:
A color conversion system for use in printing, the color conversion system comprising: a converter operable to receive image data and convert color values of the image data to a color space for printing; and a color identification module operable to identify color regions in the image data for color component limitation during printing and approximate color values in the color regions, via radial basis functions, wherein the color identification module incorporates toner or ink constraints for L 1 approximations in neutral color regions and for L ∞ approximations in saturated color regions to limit amounts of toner or ink in the neutral color regions and the saturated color regions while excluding toner or ink constraints for L 2 approximations of medium color regions, wherein the color values are representative of a CIELab color space; and wherein the error approximations include chroma C* ab of the CIELab color values according to the neutral color region defined as 0≦C* ab ≦7, the medium color region defined as 7<C* ab ≦30 and the saturated region being defined as C* ab >30.