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JNG(5)                                                                  JNG(5)

       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  speci-
       fication. 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 (

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

                                 July 26, 2000                          JNG(5)