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-compression  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-correction 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)