Patent ID: 7864364
Filing Date: 2011-01-04
Classification: H04N

Abstract:
1. A color transformation system comprising: memory which stores, for each of a plurality of color separations in a digital image, a plurality of one-dimensional tone reproduction curves, each of the tone reproduction curves for a respective color separation accounting for non-linear colorant interactions between a primary colorant with which the respective color separation is to be rendered, and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered, each of the tone reproduction curves for the respective color separation including modified input values corresponding to input values for the respective color separation at a respective single fixed input value of the at least the second color separation, including a first one-dimensional tone reproduction curve for the respective color separation at a first fixed input value of the at least the second color separation and at least a second one-dimensional tone reproduction curve for the respective color separation at a second fixed input value of the at least the second color separation, different in amount from the first fixed input value; a processing component, which, for each pixel of the digital image having a given input value for the respective color separation and a given input value for at least the second color separation: