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1. (WO2017035661) SYSTEM AND METHOD FOR REAL-TIME TONE-MAPPING

Pub. No.:    WO/2017/035661    International Application No.:    PCT/CA2016/051043
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: H04N 9/64
Applicants: IRYSTEC SOFTWARE INC.
Inventors: UNGER, Jonas
EILERTSEN, Gabriel
MANTIUK, Rafal
Title: SYSTEM AND METHOD FOR REAL-TIME TONE-MAPPING
Abstract:
A method and system for tone-mapping an image includes determining a tone-curve based on a model of image contrast distortion between the input image and a tone- mapped image and tone-mapping the input image according to the determined tone- curve. Determining the tone curve includes analytically calculating values of the tone- curve that reduce the image contrast distortion within the model of image contrast distortion. A tone-mapping operator includes a noise model generator and a tone- mapping module operable to receive one or more contextual parameters. The tone- mapping module includes an edge-stopping filtering submodule for extracting a base layer and detail layer of the input image, a tone-curve generating submodule and a combining submodule for combining the base layer and detail layer. At least one of the edge-stopping filtering submodule, the tone-curve generating submodule and combining submodule is adjustable based on the contextual parameters.