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JNG(5)			      File Formats Manual			JNG(5)

NAME
       jng - JPEG Network Graphics (JNG) sub-format

DESCRIPTION
       JNG  (JPEG Network Graphics) is a sub-format of the MNG (Multiple-image
       Network Graphics) format. As with MNG it	extends	on the features	of the
       popular PNG (Portable Network Graphics) image-format.

       This sub-format was designed to support a lossy compression-method.  It
       is based	completely on the JPEG specification. It  adds	the  high-com-
       pression	ratios of JPEG for photographic	images.

       As  a member of the Network Graphics family, JNG	was deemed adequate as
       a stand-alone format as it extends the JPEG format  with	 color-correc-
       tion and	transparency features.

SEE ALSO
       png(5), mng(5), libmng(3)

       MNG 1.00, February 9, 2001:

	      http://www.libpng.org/pub/mng

AUTHORS
       This man	page: Gerard Juyn

       Multiple-image	Network	 Graphics  (MNG)  Specification	 Version  1.00
       (Februari  9,   2001):	Glenn	Randers-Pehrson	  and	others	 (png-
       list@ccrc.wustl.edu).

COPYRIGHT NOTICE
       The  MNG-1.00  specification  is	copyright (c) 1998-2001	Glenn Randers-
       Pehrson.	 See the specification for conditions of use and distribution.

				 July 26, 2000				JNG(5)

NAME | DESCRIPTION | SEE ALSO | AUTHORS | COPYRIGHT NOTICE

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