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:
Nov. 06, 2018

Filed:

Jul. 22, 2016
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Clive Henry Gillard, Alton, GB;

Stephen Mark Keating, Reading, GB;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); H04N 9/73 (2006.01); H04N 9/77 (2006.01);
U.S. Cl.
CPC ...
H04N 9/735 (2013.01); H04N 9/77 (2013.01);
Abstract

Color conversion apparatus comprises mapping circuitry configured to map pixels of an input image having color components in an input color space to pixels of an mapped image having color components in an output color space, the input color space and the output color space being different color spaces such that at least a subset of colors representable in the input color space are not representable in the output color space; processing circuitry configured to process the mapped image by detecting instances, in the color components of pixels of the mapped image, of representations of negative amounts of a color component and in response to such a detection in respect of a pixel under test, to increase all of the color components of the pixel under test by an amount of at least the magnitude of the greatest magnitude negative amount of the color components of that pixel under test; and output circuitry configured to generate pixels of an output image, having color components in the output color space, from pixels of the processed mapped image, the output circuitry being configured to inhibit color components of pixels of the output image from exceeding a maximum representable color amount.


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