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:
Sep. 15, 2020
Filed:
Aug. 27, 2018
Koninklijke Philips N.v., Eindhoven, NL;
Renatus Josephus Van Der Vleuten, Veldhoven, NL;
Mark Jozef Willem Mertens, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method of encoding a high dynamic range image. First converting the high dynamic range image to an image of lower luminance dynamic range by applying scaling the high dynamic range image to a predetermined scale of the luma axis. Next, applying a sensitivity tone mapping which changes the brightness of pixel colors falling within at least a subrange comprising the darker colors in the high dynamic range image. Then applying a gamma function. Finally, applying an arbitrary monotonically increasing function mapping the lumas resulting from the sensitivity tone mapping and gamma adjustments to output lumas of a lower dynamic range image. Producing in an image signal a codification of the pixel colors of the lower luminance dynamic range image and outputting in the image signal values encoding the functional behavior of the above color conversions as metadata, or values for the inverse functions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile