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:
Jul. 31, 2012
Filed:
Nov. 16, 2007
Remco Theodorus Johannes Muijs, Eindhoven, NL;
Jiangtao Kuang, Sunnyvale, CA (US);
Remco Theodorus Johannes Muijs, Eindhoven, NL;
Jiangtao Kuang, Sunnyvale, CA (US);
TP Vision Holding B.V., Eindhoven, NL;
Abstract
A system () for performing gamut compression or gamut extension by transforming an input color () of an input image defined within a first gamut () into a reproduction color () of an output image for rendering by a reproduction device capable of rendering colors within a second gamut () different from the first gamut. The input color has an input chromaticity (C) and an input lightness (Z-*) together forming an input point () in a chromaticity-lightness plane. The reproduction color has a reproduction point () in the chromaticity-lightness plane, wherein an absolute difference between the input lightness and the output lightness is a decreasing function of at least the chromaticity. An absolute difference between the input chromaticity and the output chromaticity is an increasing function of at least the chromaticity.