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.

Date of Patent:
Mar. 24, 2020

Filed:

Jun. 10, 2016
Applicant:

Thomson Licensing, Issy-les-Moulineaux, FR;

Inventors:

Jurgen Stauder, Montreuil/Ille, FR;

Erik Reinhard, Hédé-Bazouges, FR;

Frederique Humbert, Rennes, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/60 (2006.01); H04N 9/67 (2006.01);
U.S. Cl.
CPC ...
H04N 1/6058 (2013.01); H04N 1/6005 (2013.01); H04N 1/6075 (2013.01); H04N 9/67 (2013.01);
Abstract

For the mapping in a non-linear color space of source colors belonging to a same constant-hue leaf, instead of using a lightness mapping function based only on a cusp lightness condition stating that a source cusp color of this leaf should be mapped into a corresponding target cusp color of this leaf, it is proposed to build such a function also on other source cusp color(s) and other target cusp color(s) having hues different from that of said leaf. Preferably, the hue interval in which these other colors are considered is representative of the curvature of the non-linear color space at the position of colors of this constant-hue leaf.


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