MirOS Manual: png(5)

PNG(5)                       BSD Reference Manual                       PNG(5)


     png - Portable Network Graphics format


     The png library contains functions dealing with files in the PNG format.
     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-colour, grayscale, and truecolour images are sup-
     ported, plus an optional alpha channel. Sample depths range from 1 to 16

     PNG is designed to work well in online viewing applications, such as the
     World Wide Web, so it is fully streamable with a progressive display op-
     tion. PNG is robust, providing both full file integrity checking and
     fast, simple detection of common transmission errors. Also, PNG can
     storegamma and chromaticity data for improved colour matching on hetero-
     geneous platforms.


     /usr/include/png.h, /usr/lib/libpng.a


     libpng(3), compress(3).


     The PNG specification, second edition, November 2003

     The PNG 1.2 specification, July 1999

     The PNG 1.0 specification, October 1996
     RFC 2083, ftp://ftp.rfc-editor.org:/in-notes/rfc2083.txt
     A W3C draft is at http://www.w3.org/TR/REC-png.html


     The png library became part of the base system with MirOS #8.


     The current libpng maintainer is Glenn Randers-Pehrson

     This manual page and the MirOS adaptions are courtesy of
     Thorsten "mirabilos" Glaser <tg@mirbsd.de>.

     For detailed authorship and copyright information, refer to

MirOS BSD #10-current          October 22, 2008                              1

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