Publication detail

Reference

ISO/IEC 15948 ed1.0

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Title

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

Publication date

2004-03-03

Format, price
(Swiss francs)
and language

	184.-		80 pages
	184.-		434 Kb

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.

Technical Committee

JTC 1/SC 24 - Computer graphics and image processing

ICS Codes

35.140

Computer graphics

Work in progress

Project	Stage code	Forecast publication date
No project under development	-	-

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