Patent ID: 7990592
Filing Date: 2011-08-02
Classification: H04N

Abstract:
1. A method of spot color management for an image marking device comprising: A) receiving a multidimensional device independent data representation of a target spot color for rendering on a multicolor image marking device; B) transforming the multidimensional device independent data to an initial device dependent color recipe used as an initial estimate of the spot color recipe required for rendering the target spot color on the multicolor image marking device; C) generating a spot color error associated with the difference between the target spot color and a spot color rendered using the initial estimate of the spot color recipe; D) selecting a gain matrix K from a plurality of gain matrices, the gain matrix K being selected to satisfy performance criteria associated with the rendering of the target spot color, the performance criteria including an acceptable spot color error associated with the rendered spot color relative to the target color, an acceptable actuator energy utilized to achieve the acceptable spot color error and a total toner/ink usage acceptable to render the spot color; E) generating a second device dependent color recipe for the target spot color as a function of the spot color error and the selected gain matrix K; and F) performing one or more of rendering the second device dependent data representation of the spot color, storing the second device dependent color recipe of the spot color, further processing the second device dependent color recipe of the spot color and communicating the second device color recipe of the spot color to a data receiving device.