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. 23, 2019
Filed:
Dec. 07, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Shinnosuke Osawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image pickup apparatus, which is configured to perform tone correction for preventing saturation of a pixel signal value of a photographed image, the image pickup apparatus including: a first correction unit configured to perform first tone correction that combines exposure control and gain control on the pixel signal value of the image; a second correction unit configured to perform second tone correction for reducing a pixel signal value in a region in which the pixel signal value of the image is higher than a predetermined value; and a determination unit configured to determine a first correction amount to be used for the first tone correction and a second correction amount to be used for the second tone correction in accordance with a photographing condition.