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. 16, 2016
Filed:
Dec. 16, 2014
Applicant:
Marvell World Trade Ltd., St. Michael, BB;
Inventor:
Huai Dong Li, Cupertino, CA (US);
Assignee:
MARVELL WORLD TRADE LTD., St. Michael, BB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/407 (2006.01); H04N 9/04 (2006.01); G06T 5/40 (2006.01); G06K 9/46 (2006.01); G06K 9/36 (2006.01); G06T 5/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/4074 (2013.01); G06T 5/007 (2013.01); G06T 5/40 (2013.01); H04N 1/4072 (2013.01); H04N 9/045 (2013.01); G06T 2207/20021 (2013.01);
Abstract
A method and imaging device are provided. An image is divided into N zones, and a histogram is generated for each of the N zones. A tone curve is determined for each of the N zones, where tone curve parameters including the controlling of shape and transition point of the curve are based on the histogram of each zone. A tone-mapped value for each pixel of the image is determined based on a sum of M weighted values determined by applying tone curves of M zones to a value of the pixel.