FIELD: physics.
SUBSTANCE: invention relates to methods and apparatus for encoding a video signal based on determination of weighted prediction parameters. Method comprises determining gain and offset of weighted prediction for a first colour component; based on the calculated values of the amplification factor and the weighted prediction offset of the first colour component, weighted prediction gain and offset of the second and third colour components are determined as a function of displacements when converting colours, colour conversion matrix and gain and weighted prediction coefficients of the first colour component; and encoding video signal based on determined parameters of weighted prediction of second and third colour components.
EFFECT: technical result is higher efficiency of the image display device.
18 cl, 16 dwg
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