1JNG(5)                        File Formats Manual                       JNG(5)
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NAME

6       jng - JPEG Network Graphics (JNG) sub-format
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DESCRIPTION

9       JNG  (JPEG Network Graphics) is a sub-format of the MNG (Multiple-image
10       Network Graphics) format. As with MNG it extends on the features of the
11       popular PNG (Portable Network Graphics) image-format.
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13       This sub-format was designed to support a lossy compression-method.  It
14       is based completely on the JPEG specification. It  adds  the  high-com‐
15       pression ratios of JPEG for photographic images.
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17       As  a member of the Network Graphics family, JNG was deemed adequate as
18       a stand-alone format as it extends the JPEG format  with  color-correc‐
19       tion and transparency features.
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SEE ALSO

23       png(5), mng(5), libmng(3)
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25       MNG 1.00, February 9, 2001:
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27              http://www.libpng.org/pub/mng
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AUTHORS

31       This man page: Gerard Juyn
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33       Multiple-image   Network  Graphics  (MNG)  Specification  Version  1.00
34       (Februari  9,   2001):   Glenn   Randers-Pehrson   and   others   (png-
35       list@ccrc.wustl.edu).
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38       The  MNG-1.00  specification  is copyright (c) 1998-2001 Glenn Randers-
39       Pehrson.  See the specification for conditions of use and distribution.
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41                                 July 26, 2000                          JNG(5)
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