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 G06F17/10 G06T1/00 

FIELD: calculating; counting.

SUBSTANCE: invention relates to the computer equipment. Data encoder configured to exchange image data based on non-linear perception comprises: a receiver unit receiving image data; display unit displaying values of digital code in received image data in the reference digital code values in the encoded image reference data, based on the contrast sensitivity of the human vision; and a transmission unit transmitting reference data of the encoded image; wherein the display unit displays the values of the digital code based at least in part on the functional model:

;

and parameters n, m, c₁, c₂ and c₃ are predetermined values.

EFFECT: technical result is visualization of image on devices displaying end users with fewer visually noticeable errors.

8 cl, 4 tbl, 16 dwg