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:
Apr. 21, 2015
Filed:
Sep. 24, 2008
LI Hong, San Diego, CA (US);
Li Hong, San Diego, CA (US);
Nikon Corporation, Tokyo, JP;
Abstract
An image apparatus () for providing an estimated final illuminant of a scene () and subsequently providing an adjusted image () of a scene () includes a capturing system () and a control system (). The capturing system () captures information for an input image () of the scene () while at an apparatus setting. The input image () is defined by a plurality of input colors. The control system () can compare at least one of the input colors to an illuminant database () that includes an illuminant gamut of observable colors for a plurality of possible illuminants, and can evaluate the apparatus setting to select one of the possible illuminants to be the estimated final illuminant. Examples of possible apparatus settings include an aperture size and an exposure time. With this design, the present invention is better able to distinguish between some possible outdoor illuminants and some possible indoor illuminants with improved accuracy. Additionally, the control system () can evaluate a consistency matching error for the plurality of possible illuminants to determine if the scene () has intrinsic color casting.