Patent ID: 7019868
Filing Date: 2006-03-28
Classification: G06K,H04N

Abstract:
1. A method of determining colorant amounts to be laid down in a color printer comprising: inputting an initial set of cyan, magenta and yellow (CMY) input values; defining a gamut center black generation curve; defining a gamut boundary black generation curve; extending a surface between the gamut center black generation curve and the gamut boundary black generation curve; defining a second gamut boundary black generation curve and then extending a tetrahedron between the gamut center black generation curve and the two gamut boundary black generation curves, and interpolating a black colorant amount for the final set of CMY values in the tetrahedron; interpolating a black colorant amount for a final set of CMY values on the surface between two surfaces consisting of gamut center black generation curve and any gamut boundary black generation curve; and calculating the final set of CMY values.