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:
Jul. 06, 2021

Filed:

Aug. 21, 2019
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Tetsuya Hata, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); H04N 9/64 (2006.01); H04N 9/04 (2006.01);
U.S. Cl.
CPC ...
H04N 9/646 (2013.01); H04N 9/04 (2013.01);
Abstract

A first tone correction unit generates a second image signal by applying, to a first image signal, first tone correction processing conforming to a first tone correction characteristic. A second tone correction unit generates a fourth image signal by applying, to a third image signal, second tone correction processing conforming to a second tone correction characteristic. A generation unit generates a fifth image signal by compositing a luminance component of the second image signal and a color difference component of the fourth image signal. A first tone conversion unit generates a sixth image signal by applying, to the fifth image signal, first tone conversion processing conforming to a non-linear first tone conversion characteristic. The second tone correction characteristic is determined based on the first tone correction characteristic and a non-linear second tone conversion characteristic.


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