Patent ID: 9106874
Filing Date: 2015-08-11
Classification: H04N

Abstract:
1. A computer implemented method of generating a plurality of custom spot color look-up tables, each custom spot color look-up table associated with one of a plurality of operational states associated with a single image marking device, and each of the plurality of operational states associated with one of a plurality of respective distinct gamuts capable of being rendered by the image marking device, the method comprising: A) receiving a user defined first colorant recipe for a user named custom spot color associated with a first operational state of the image marking device, the first operational state associated with a respective first distinct gamut capable of being rendered by the image marking device; B) storing the first colorant recipe and associated user named custom spot color in a first look-up table associated with the first operational state of the image marking device; C) processing the first colorant recipe using a first printer calibration color profile associated with the first operational state of the image marking device to generate a device independent color space representation of the first colorant recipe, the first printer calibration color profile including colorant recipes of a reference set of colors not including custom spot colors; D) processing the device independent color space representation of the first colorant recipe using a second printer calibration color profile associated with a second operational state of the image marking device to generate a second colorant recipe associated with the named spot color for the second operational state of the image marking device, the second printer calibration color profile including colorant recipes of the reference set of colors not including custom spot colors and, the second operational state associated with a respective second distinct gamut capable of being rendered by the image marking device; and E) storing the second colorant recipe and associated named custom spot color in a second look-up table associated with the second operational state of the image marking device.