png man page on OpenIndiana

png man page on OpenIndiana

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Output format

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 com‐
       mon 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  heteroge‐
       neous platforms.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │image/library/libpng	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface stability	     │Volatile			   │
       └─────────────────────────────┴─────────────────────────────┘

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.inter‐
       nic.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 5.11			  26 Mar 2004			      png.4(4)

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