FIELD: physics.
SUBSTANCE: invention relates to the computer equipment. Method for encoding a colour picture having colour components comprises: obtaining a luminance component (L) and two final chrominance components (C1, C2) from a colour picture to be encoded, obtaining a final luminance component (L'') and two final chrominance components (C1'', C2''), and encoding L" and one final chroma component, wherein in addition: determining a first coefficient (
) based on each pixel (i) L; obtaining C1'', C2'' by scaling C1, C2 by first coefficient; and final components L" are obtained by linear combination of component L and two components C1'', C2'' as follows: 
, where m and n are non-zero coefficients.
EFFECT: technical result is providing backward compatibility of SDR and HDR by combining decoded brightness and chrominance components.
15 cl, 16 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHODS AND APPARATUS FOR ENCODING AND DECODING COLOUR HDR IMAGE | 2016 |
|
RU2710291C2 |
| METHOD AND DEVICE FOR COLOUR IMAGE ENCODING AND DECODING | 2016 |
|
RU2705013C2 |
| METHOD AND DEVICE FOR COLOUR IMAGE DECODING | 2016 |
|
RU2710873C2 |
| METHOD AND DEVICE FOR ENCODING AN IMAGE OF A HIGH DYNAMIC RANGE, A CORRESPONDING DECODING METHOD AND A DECODING DEVICE | 2017 |
|
RU2737507C2 |
| IMPROVED REPEATED VIDEO COLOR DISPLAY WITH HIGH DYNAMIC RANGE | 2018 |
|
RU2782432C2 |
| SYSTEM FOR PROCESSING OF SEVERAL HDR VIDEO FORMATS | 2019 |
|
RU2783591C2 |
| METHOD FOR CONTROLLING IMAGE DISPLAY, DEVICE FOR CONTROLLING IMAGE DISPLAY AND PERMANENT MACHINE-READABLE DATA CARRIER | 2017 |
|
RU2755873C2 |
| SIMPLE BUT FLEXIBLE DYNAMIC RANGE ENCODING | 2016 |
|
RU2720446C2 |
| METHOD AND DEVICE FOR RECOVERING HDR IMAGE ADAPTED TO THE DISPLAY | 2021 |
|
RU2776101C1 |
| HDR VIDEO ENCODING AND DECODING | 2017 |
|
RU2728516C2 |
