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:
Feb. 25, 2020
Filed:
Jul. 23, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Kotaro Kitajima, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/77 (2006.01); G06T 5/00 (2006.01); G03B 7/08 (2014.01); H04N 9/07 (2006.01); H04N 9/73 (2006.01); G03B 7/28 (2006.01);
U.S. Cl.
CPC ...
H04N 9/77 (2013.01); G03B 7/08 (2013.01); G06T 5/002 (2013.01); G06T 5/008 (2013.01); H04N 9/07 (2013.01); H04N 9/735 (2013.01); G03B 7/28 (2013.01); G06T 2207/10024 (2013.01);
Abstract
Disclosed is an image processing apparatus and a control method thereof that can correct the brightness of a pixel in an image. Reflection characteristics of environment light when the image is captured are estimated by applying smoothing to the image. The brightness of the pixel is corrected by computing a correction value for correcting the brightness of the pixel based on the reflection characteristics of the environment light and adding the correction value to the pixel. The brightness can be corrected while suppressing an amplification of noise and a loss of details of a subject.