US 11,812,005 B2
User-preferred reproduction of out-of-gamut spot colors
Chung-Hui Kuo, Fairport, NY (US); Victor Ignacio Ibarluzea, Brockport, NY (US); and Thomas L. Schwartz, Fairport, NY (US)
Assigned to EASTMAN KODAK COMPANY, Rochester, NY (US)
Filed by Eastman Kodak Company, Rochester, NY (US)
Filed on Jun. 28, 2022, as Appl. No. 17/851,079.
Claims priority of provisional application 63/273,248, filed on Oct. 29, 2021.
Prior Publication US 2023/0133375 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 1/60 (2006.01)
CPC H04N 1/6066 (2013.01) [H04N 1/6075 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for reproducing an out-of-gamut spot color on a color printer, comprising:
determining a color gamut for the color printer, the color gamut being defined by a color gamut surface in a three-dimensional color space representing the colors that can be printed by the color printer;
specifying a spot color by color coordinates in the three-dimensional color space, wherein the spot color is outside of the color gamut surface;
determining a first target color corresponding to a color on the color gamut surface having a minimum color difference to the specified spot color;
determining a second target color corresponding to a color on the color gamut surface having a hue value equal to a hue value of the specified spot color;
defining a path on the color gamut surface connecting the first target color and the second target color, wherein a control parameter having a control parameter value is used to specify a relative position along the defined path; and
providing a user interface enabling a user to adjust the control parameter to specify an aim color along the defined path for reproducing the spot color using the color printer.