| US 7,567,362 B2 | ||
| Effecting gamut operations using boundary line elements | ||
| Siu-Kei Tin, Milpitas, Calif. (US) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan); and Microsoft Corp., Redmond, Wash. (US) | ||
| Filed on Aug. 19, 2005, as Appl. No. 11/208,472. | ||
| Prior Publication US 2007/0041026 A1, Feb. 22, 2007 | ||
| Int. Cl. G03F 3/08 (2006.01) | ||
| U.S. Cl. 358—1.9 [358/518; 345/590] | 29 Claims |
| 1. A method for performing a type of gamut operation for a color device given a color input value, the color device being
characterized by a gamut boundary comprising a collection of gamut boundary triangles, the method comprising the steps of:
determining boundary line elements that correspond to a subset of the collection of gamut boundary triangles,
wherein the subset of the collection of gamut boundary triangles excludes triangles based on the type of gamut operation and
the color input value,
and wherein each boundary line element represents a line segment defined by an intersection of one of the gamut boundary triangles
within the subset of the collection of gamut boundary triangles with a hue plane,
and wherein the hue plane is within the gamut boundary and based on the color input value; and
determining a result for the gamut operation using one or more of the determined boundary line elements.
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