InterDigital Inc (IDCC)

[Gamco]

United States Patent 10,148,906
Seifi , et al. December 4, 2018

Methods, apparatus, and systems for extended high dynamic range ("HDR") HDR to HDR tone mapping


Abstract

Aspects of present principles are directed to methods and apparatus for tone mapping a high dynamic range image. The apparatus includes a processor for performing the following and the method includes the following: obtaining a luminance component of the high dynamic range image; determining an HDR to HDR tone mapper curve; determining a tone compressed image by applying the HDR to HDR tone mapper curve to the luminance component of the high dynamic range image; wherein the HDR to HDR tone mapper curve comprises a first part for dark and mid-tone levels, and a second part for highlights.



Inventors:
Seifi; Mozhdeh (Thorigne-Fouillard, FR), Reinhard; Erik (Hede-Bazouges, FR), Poirier; Guillaume (Rennes, FR)

Applicant:


Name

City

State

Country

Type


THOMSON LICENSING
Issy les Moulineaux
N/A
FR


Assignee:
INTERDIGITAL VC HOLDINGS, INC. (Wilmington, DE)


Family ID:
1000003689260

Appl. No.:
15/460,254

Filed:
March 16, 2017


Prior Publication Data






Document Identifier

Publication Date

US 20170272690 A1 Sep 21, 2017



Foreign Application Priority Data





Mar 16, 2016 [EP] 16305291



Current U.S. Class: 1/1
Current CPC Class: H04N 7/01 (20130101); H04N 5/355 (20130101); G06T 5/009 (20130101); G06T 2207/20208 (20130101)
Current International Class: H04N 7/01 (20060101); H04N 5/355 (20110101); G06T 5/00 (20060101)
Field of Search: ;348/231.99,222.1

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