FIELD: data processing.
SUBSTANCE: group of inventions relates to video processing technologies. Disclosed is a method of encoding a color three-dimensional look-up table. Table is given in the form of a grid of vertices using an octree, and stores at least one value for each vertex, which is a set of input color values. Method comprises a step of encoding a split flag for the current octant of said octree, indicating whether at least one of its immediate child octants is recursively encoded. Further, according to the method, at least one value for the vertex in the current octant is predicted from the restoration of the value(s) of at least one neighboring vertex, to obtain prediction.
EFFECT: high efficiency of encoding/decoding video data by reducing the amount of encoded/decoded data.
10 cl, 18 dwg, 9 tbl
