This document defines the syntax and an accompanying decompression process that is capable to represent continuous-tone grey-scale, or continuous-tone colour digital images without visual loss at moderate compression rates. Typical compression rates are between 2:1 and 6:1 but can also be higher depending on the nature of the image. In particular, the syntax and the decoding process specified in this document allow lightweight encoder and decoder implementations that limit the end-to-end latency to a fraction of the frame size. However, the definition of transmission channel buffer models necessary to ensure such latency is beyond the scope of this document.
— specifies decoding processes for converting compressed image data to reconstructed image data;
— specifies a codestream syntax containing information for interpreting the compressed image data;
— provides guidance on encoding processes for converting source image data to compressed image data.
Status: PublishedPublication date: 2022-03
Edition: 2Number of pages: 100
Technical Committee: ISO/IEC JTC 1/SC 29 Coding of audio, picture, multimedia and hypermedia information
- ICS :
- 35.040.30 Coding of graphical and photographical information
This standard contributes to the following Sustainable Development Goals:
Buy this standard
|std 1 208||PDF + ePub|
|std 2 208||Paper|
A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development
ISO/IEC DIS 21122-1
Got a question?
Check out our FAQs
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.