Information technology — Computer graphics and image processing — Portable Network Graphics (PNG): Functional specification

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.

Technologies de l'information — Infographie et traitement d'images — Graphiques de réseau portables (PNG): Spécification fonctionnelle

General Information

Status
Published
Publication Date
02-Mar-2004
Current Stage
9093 - International Standard confirmed
Start Date
20-Jun-2007
Completion Date
05-Aug-2021
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ISO/IEC 15948:2004 - Information technology -- Computer graphics and image processing -- Portable Network Graphics (PNG): Functional specification
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INTERNATIONAL ISO/IEC
STANDARD 15948
First edition
2004-03-01
Information technology — Computer
graphics and image processing —
Portable Network Graphics (PNG):
Functional specification
Technologies de l'information — Infographie et traitement d'images —
Graphiques de réseau portables (PNG): Spécification fonctionnelle
Reference number
ISO/IEC 15948:2004(E)
ISO/IEC 2004
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ISO/IEC 15948:2004(E)

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