FIELD: information technologies.
SUBSTANCE: it is proposed to represent each colour pixel with three colour components, every of which is initially coded with ten bits. Coding is carried out by breaking the initial colour video frame into non-covering space units, and subsequent separation of a bit representation of each colour component of a pixel into a senior part, made of more than one senior bit, and a junior part made of at least one junior bit, then separate coding of the senior and junior parts, besides, coding of the senior part is carried out by application of more than one coding method, every of which takes into account pixel-to-pixel connections only within the limits of the processed space unit, estimation of a coding error, selection of a coding method, giving the smallest error, sending data on the method of coding by means of a prefix code transfer, coding of the junior part, which is carried out by averaging of more than one value, included into the junior part, besides, dimensions of the averaging areas within the limits of the junior part, a number of bits, fixed in advance, is set as required for a compact representation of initial space colour unit.
EFFECT: efficient compression of a colour high-quality image without visible visual distortions.
25 cl, 29 dwg, 13 tbl
