png(4) [sunos man page]
png.4(4) File Formats png.4(4) NAME
png - Portable Network Graphics (PNG) format DESCRIPTION
PNG (Portable Network Graphics) is an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG pro- vides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, and an optional alpha channel. Sample depths range from 1 to 16 bits. PNG is designed to work well in online viewing applications, such as the World Wide Web, and is fully streamable with a progressive display option. PNG is robust, and provides both full file integrity checking, and fast simple detection of common transmission errors. PNG can store gamma and chromaticity data for improved color matching on heterogeneous platforms. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWpng | +-----------------------------+-----------------------------+ |Interface stability |External | +-----------------------------+-----------------------------+ SEE ALSO
libpng(3), zlib(3) PNG 1.2 specification, July 1999: http://www.libpng.org/pub/png or ftp://ftp.uu.net/graphics/png/documents PNG 1.0 specification, October 1996: RFC 2083 ftp://ds.internic.net/rfc/rfc2083.txt or as a W3C Recommendation at http://www.w3.org/TR/REC- png.html NOTES
This man page was originally written by Glenn Randers-Pehrson. Updated by Breda McColgan, Sun Microsystems Inc., 2004. SunOS 5.10 26 Mar 2004 png.4(4)
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PNG(5) File Formats Manual PNG(5) NAME
png - Portable Network Graphics (PNG) format DESCRIPTION
PNG (Portable Network Graphics) is an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG pro- vides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits. PNG is designed to work well in online viewing applications, such as the World Wide Web, so it is fully streamable with a progressive dis- play option. PNG is robust, providing both full file integrity checking and fast, simple detection of common transmission errors. Also, PNG can store gamma and chromaticity data for improved color matching on heterogeneous platforms. SEE ALSO
libpng(3),zlib(3),deflate(5),andzlib(5) PNG specification (second edition), November 2003: <http://www.w3.org/TR/2003/REC-PNG-20031110/ PNG 1.2 specification, July 1999: http://www.libpng.org/pub/png PNG 1.0 specification, October 1996: RFC 2083 ftp://ds.internic.net/rfc/rfc2083.txt or (as a W3C Recommendation) at http://www.w3.org/TR/REC-png.html AUTHORS
This man page: Glenn Randers-Pehrson Portable Network Graphics (PNG) Specification (Second Edition) Information technology - Computer graphics and image processing - Portable Network Graphics (PNG): Functional specification. ISO/IEC 15948:2003 (E) (November 10, 2003): David Duce and others. Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999): Glenn Randers-Pehrson and others (png-list). Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996): Thomas Boutell and others (png-list). COPYRIGHT NOTICE
This man page is Copyright (c) 1998-2006 Glenn Randers-Pehrson. See png.h for conditions of use and distribution. The PNG Specification (Second Edition) is Copyright (c) 2003 W3C. (MIT, ERCIM, Keio), All Rights Reserved. The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson. See the specification for conditions of use and distribution. The PNG-1.0 specification is copyright (c) 1996 Massachusetts Institute of Technology. See the specification for conditions of use and distribution. June 26, 2010 PNG(5)