DEVICE AND METHOD OF IMPROVING IMAGE DATA EXCHANGE BASED ON NONLINEARITY OF PERCEPTION OF BRIGHTNESS BETWEEN DIFFERENT DISPLAY CAPABILITIES Russian patent published in 2020 - IPC G09G5/10 G06T5/00 

FIELD: computer equipment.

SUBSTANCE: invention relates to the computer equipment. Device for processing streams of binary signals stored on information carriers which are invariable with time, binary signals stream comprises an image and metadata, wherein the metadata includes a first luminance value and a second luminance value; image is encoded by digital code values D, which represent a normalized brightness value Y, based at least in part on a functional model: ; parameters n, m, c₁, c₂ and c₃ are given values; and the normalized value V of the D values of the digital code is in range of 0≤V≥1, wherein the D values of the digital code exclude redundant code values.

EFFECT: technical result consists in reducing visually perceptible coding errors.

5 cl, 16 dwg, 4 tbl