ISO/IEC 15948:2004
p
ISO/IEC 15948:2004
29581

Abstract

 Preview

ISO/IEC 15948:2004 specifies a datastream and an associated file format, Portable Network Graphics (PNG, pronounced "ping"), for a lossless, portable, compressed individual computer graphics image transmitted across the Internet. Indexed-colour, greyscale, and truecolour images are supported, with optional transparency. Sample depths range from 1 to 16 bits. PNG is fully streamable with a progressive display option. It is robust, providing both full file integrity checking and simple detection of common transmission errors. PNG can store gamma and chromaticity data as well as a full ICC colour profile for accurate colour matching on heterogenous platforms. ISO/IEC 15948:2004 defines the Internet Media type "image/png". The datastream and associated file format have value outside of the main design goal.


General information 

  •  :  Published
     : 2004-03
  •  : 1
     : 80
  •  : ISO/IEC JTC 1/SC 24 Computer graphics, image processing and environmental data representation
  •  :
    35.140 Computer graphics

Buy this standard

en
Format Language
std 1 178 HTML
std 2 178 HTML on CD
  • CHF178

Life cycle


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.