Patent ID: 8280161
Filing Date: 2012-10-02
Classification: H04N

Abstract:
1. A method for compensating a spot color emulation colorant recipe for emulating a spot color in output of an associated color producing system, the spot color being associated with at least one of a spot color definition in terms of a machine independent color space and an initial spot color emulation colorant recipe in terms of a machine dependent color space of the color producing system, the compensation being for changes in the associated color producing system, the method comprising: determining the initial spot color emulation colorant recipe at a first point in time; determining a first system model for the associated color producing system, wherein the first system model relates colorant recipes to values in the device independent color space according to the operation of the color producing system at the first point in time; determining a second system model for the associated color producing system, wherein the second system model relates colorant recipes to values in the device independent color space according to the operation of the color producing system at a second point in time; processing at least one of the spot color definition and the initial spot color emulation colorant recipe according to information included in, or generated from, both the first system model and the second system model, thereby generating a compensated spot color emulation recipe; and using the compensated spot color emulation colorant recipe to render an emulation of the spot color.