DYNAMIC RANGE ADJUSTMENT FOR VIDEO ENCODING WITH EXTENDED DYNAMIC RANGE AND WIDE COLOUR GAMMA Russian patent published in 2019 - IPC H04N19/186 H04N19/184 H04N19/61 H04N19/85 G06T9/00 

FIELD: physics.

SUBSTANCE: invention relates to video data processing. This invention provides processing of video data, including processing of video data for compliance with colour container with extended dynamic range/wide colour gamut (HDR/WCG). Disclosed techniques include Dynamic Range Control (DRA) parameters and apply DRA parameters to video data in order to better use colour container with HDR/WCG. Techniques of this disclosure may also include signalling of syntax elements which enable a video decoder or a post-processing device to use DRA techniques from this disclosure to restore a source or proper colour container of video data.

EFFECT: technical result is high accuracy of restoring the colour container of video data.

43 cl, 13 dwg, 2 tbl