The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2013
Filed:
Mar. 12, 2009
Michael T. Stevens, Aloha, OR (US);
Michael T. Stevens, Aloha, OR (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
What is disclosed is a system and method for mapping an out of gamut RGB color to a surface of a color gamut in RGB space. A point xhaving {RGB} values in RGB space is identified which is outside a surface of a color gamut of a target device. A lightness value γ and a chroma vector {right arrow over (C)}=[C, C, C] are determined from the {RGB} values of the identified point. A minimum and a maximum saturation are determined for point x. A new lightness value γ' and a new chroma vector {right arrow over (C)} are calculated based on the minimum and maximum saturation values, in a manner as is described herein in detail. The new lightness γ′ and the new chroma vector {right arrow over (C)} are converted back into {R′G′B′} values. The {R′G′B′} values are provided to a gamut mapping function.