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:
Dec. 14, 2021

Filed:

Dec. 18, 2020
Applicant:

Fondation B-com, Cesson Sevigne, FR;

Inventors:

Foteini Tania Pouli, Le Rheu, FR;

Cambodge Bist, Karlsruhe, DE;

Jean-Yves Aubie, Melesse, FR;

Assignee:

FONDATION B-COM, Cesson Sevigne, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 5/00 (2006.01); H04N 9/77 (2006.01); H04N 7/01 (2006.01);
U.S. Cl.
CPC ...
H04N 7/0125 (2013.01); G06T 5/009 (2013.01); H04N 9/77 (2013.01); G06T 2207/20208 (2013.01);
Abstract

A method is described for converting an input image into an output image, the output image including an output luminance component made of elements. The method includes: obtaining an input luminance component from the input image; determining the output luminance component, the respective ranges of the output luminance component element values and input luminance component element values being of different range extension, the determining step including: —determining a first intermediate luminance component from the input luminance component and an exponent, —obtaining a mapping profile allowing for mapping a luminance component based on the input luminance component into the output luminance component, —determining a second intermediate luminance component from the input luminance component and the obtained mapping profile, —determining the output luminance component from the first and second intermediate luminance components; and converting the input image into the output image.


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