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:
Aug. 17, 2021
Filed:
Apr. 26, 2018
Interdigital Vc Holdings, Inc, Wilmington, DE (US);
Cedric Thebault, Saint Aubin d'Aubigne, FR;
Jurgen Stauder, Montreuil/Ille, FR;
Angelo Mazzante, Cesson-Sevigne, FR;
INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US);
Abstract
The present principles relate to a method and device for gamut mapping from a first color gamut towards a second color gamut. The method comprises, in a plane of constant hue, mapping the chroma of the color from the first color gamut towards the second color gamut at constant lightness. The chroma mapping further comprises obtaining a target color on the second color gamut boundary wherein the lightness of the target color is greater than or equal to the lightness of a color of maximum chroma of the first color gamut and wherein the lightness of the target color is lower than the lightness of a color of maximum chroma of the second color gamut. In case where the lightness of the color is greater than the lightness of the target color, the chroma mapping comprises mapping at constant lightness the chroma of a color on the first color gamut boundary by a decreasing function of chroma applied to lightness, wherein the respective outputs of the decreasing function applied to the lightness of the target color and to the lightness of the white are the chroma of the target color and the chroma of the white.