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       jng - JPEG Network Graphics (JNG) sub-format


       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.


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

       MNG 1.00, February 9, 2001:



       This man page: Gerard Juyn

       Multiple-image   Network  Graphics  (MNG)  Specification  Version  1.00
       (Februari  9,   2001):   Glenn   Randers-Pehrson   and   others   (png-


       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