FIELD: physics.
SUBSTANCE: method of encoding image or part of an image, which determines the QPC quantization parameter value of at least one colour component of the image or a part of image by using a function to obtain the QPC value from the intermediate quantization parameter QPI value and when the colour format is 4:2:2, and when the colour format is 4:4:4, wherein the intermediate quantization parameter QPI is based on the value of the quantization parameter of the brightness component of an image or a part of image, and the use of the function to obtain the QPC value from the value of the intermediate quantization parameter QPI when the colour format is 4:2:0; and using the said specific value to encode an image or a part of image.
EFFECT: providing the ability to store in memory only some functions.
18 cl, 6 dwg, 5 tbl
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|---|---|---|---|
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RU2648276C1 |
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| BLOCK ADAPTIVE CODING WITH CONVERSION OF COLOUR SPACE | 2015 |
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RU2698760C2 |
| QUANTIZATION PARAMETER COMMUNICATION | 2020 |
|
RU2780495C1 |
| HIGH-LEVEL SYNTAX SIGNALING ENCODER, DECODER AND CORRESPONDING METHODS | 2021 |
|
RU2826547C1 |
| QUANTISATION OF CHROMATICITY IN CODING VIDEO SIGNALS | 2014 |
|
RU2693310C2 |
| CHROMA QUANTIZATION IN VIDEO CODING | 2014 |
|
RU2653475C2 |
