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:
Mar. 06, 2018
Filed:
Dec. 02, 2014
Applicant:
Thomson Licensing, Issy les Moulineaux, FR;
Inventors:
Assignee:
Thomson Licensing, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 5/00 (2006.01); H04N 5/57 (2006.01); H04N 21/431 (2011.01); G06K 9/46 (2006.01); G06K 9/52 (2006.01); G06T 7/90 (2017.01); H04N 5/235 (2006.01);
U.S. Cl.
CPC ...
G06T 5/007 (2013.01); G06K 9/4661 (2013.01); G06K 9/52 (2013.01); G06T 5/008 (2013.01); G06T 7/90 (2017.01); H04N 5/57 (2013.01); H04N 21/4318 (2013.01); G06T 2207/20024 (2013.01); G06T 2207/20064 (2013.01); G06T 2207/20208 (2013.01); H04N 5/2355 (2013.01);
Abstract
Method comprising, for each pixel, obtaining a pixel expansion exponent value (E'(p)) by low pass filtering luminance values of colors of pixels in its spatial neighborhood, obtaining a pixel luminance-enhancement value (Y(p)) by extraction of high frequencies of luminance values of colors of pixels in its spatial neighborhood, and then inverse tone mapping the luminance (Y(p)) according to the equation Y(p)=Y(p)×[Y(p)].