Patent ID: 8270029
Filing Date: 2012-09-18
Classification: H04N

Abstract:
1. A method of generating a multidimensional destination profile for a color printing device, the color printing device including a plurality of non-black colorants and a black colorant, the method comprising: a) receiving a device independent multidimensional data representation of a plurality of target colors, the multidimensional data representations associated with a plurality of nodes in a device independent color space; b) running a process to generate a first destination profile for the color printing device, the first destination profile mapping the device independent multidimensional data representations associated with the plurality of target colors to device dependent multidimensional data representations associated with a device dependent color space, the device dependent multidimensional data representative of a plurality of colorant recipes for rendering the target colors using the color printing device; c) determining neutral axis target colors which are substantially representative of a neutral axis associated with the device independent color space; and d) modifying the first destination profile to generate a second destination profile by replacing the device dependent multidimensional data representations mapped to the neutral axis target colors with black only device dependent data representations, the black only device dependent data representative of the black colorant amount for rendering the neutral axis target colors using the color printing device, wherein the first destination profile is modified by iteratively calculating the black only device dependent data representations using a color printing device model or the color printing device, where the initial estimate of a black only device dependent data representation associated with a respective neutral axis target color is a black only device dependent data representation associated with a neighboring neutral axis target color.