ISO/IEC 18181-4:2022
ISO/IEC 18181-4:2022

The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site.



This document provides reference implementations of ISO/IEC 18181-1 and ISO/IEC 18181-2. The software supports lossless and lossy compression of images and image sequences for a wide range of use cases such as (but not limited to) images with wide colour gamut and/or high dynamic range and responsive web images. This document includes source code and instructions for compilation and usage.

General information 

  •  :  Published
     : 2022-08
  •  : 1
     : 3
  •  : ISO/IEC JTC 1/SC 29 Coding of audio, picture, multimedia and hypermedia information
  •  :
    35.040.30 Coding of graphical and photographical information

Buy this standard

Format Language
std 1 40 PDF + ePub
std 2 40 Paper
  • CHF40

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
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.