METHODS AND APPARATUS FOR ENCODING AND DECODING COLOUR HDR IMAGE Russian patent published in 2019 - IPC H04N19/30 

Abstract RU 2710291 C2

FIELD: physics.

SUBSTANCE: present disclosure generally relates to a method of encoding a colour image of a high dynamic range and at least one first colour image of a standard dynamic range, wherein said method comprises encoding a second colour image of a standard dynamic range obtained from an HDR colour image; determining a colour re-display model assembled from a first piecewise linear function, a three-on-three matrix and a second piecewise linear function, from colours of said second colour image of standard dynamic range and colours of said at least one first colour image of standard dynamic range.

EFFECT: technical result consists in improvement of visual quality of decoded colour image.

31 cl, 15 dwg, 1 tbl

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RU 2 710 291 C2

Authors

Leleannek Fabris

Lasserr Sebasten

Andrivon Per

Dates

2019-12-25Published

2016-06-27Filed