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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