Reference number
ISO/IEC 15948:2004
International Standard
ISO/IEC 15948:2004
Information technology — Computer graphics and image processing — Portable Network Graphics (PNG): Functional specification
Edition 1
2004-03
Read sample
ISO/IEC 15948:2004
29581
Published (Edition 1, 2004)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO/IEC 15948:2004

ISO/IEC 15948:2004
29581
Language
Format
CHF 194
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Abstract

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
    : International Standard confirmed [90.93]
  •  : 1
     : 80
  • ISO/IEC JTC 1/SC 24
    35.140 
  • RSS updates

Life cycle

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