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:
Oct. 11, 2016

Filed:

Jul. 02, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Hiroaki Kuchiki, Nagareyama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/73 (2006.01); H04N 5/235 (2006.01); H04N 1/60 (2006.01);
U.S. Cl.
CPC ...
H04N 9/735 (2013.01); H04N 1/6077 (2013.01); H04N 5/2354 (2013.01);
Abstract

An image processing device capable of stably performing white balance control. A first WB correction value is calculated according to an infrared light amount obtained from a first image. A second WB correction value different from the first one is calculated according to white pixels obtained from the first image. A third WB correction value is calculated based on the first and second WB correction values. White balance processing is performed on the first image using the third WB correction value, which is stored as a reference WB correction value. When the infrared light amount not smaller than a predetermined amount is obtained from the second image and also the number of obtained white pixels is smaller than a predetermined number, white balance processing is performed on the second image using the stored reference WB correction value.


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