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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2016-10-09 21:55:38 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2016-10-09 21:55:38 +0000 |
| commit | 925322ffeda23ca9cf3911ede7aab366859ab996 (patch) | |
| tree | 5630fef6230dadb2f883d4b6e5bf92552bb56c00 /pnmtopng.html | |
| parent | e8b77a65fed29220abe8119e6f337d6979dbf80d (diff) | |
| download | netpbm-mirror-925322ffeda23ca9cf3911ede7aab366859ab996.tar.gz netpbm-mirror-925322ffeda23ca9cf3911ede7aab366859ab996.tar.xz netpbm-mirror-925322ffeda23ca9cf3911ede7aab366859ab996.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@2834 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'pnmtopng.html')
| -rw-r--r-- | pnmtopng.html | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pnmtopng.html b/pnmtopng.html index 72796c94..a062f382 100644 --- a/pnmtopng.html +++ b/pnmtopng.html @@ -3,7 +3,7 @@ <HEAD><TITLE>Pnmtopng User Manual</TITLE></HEAD> <BODY> <H1>pnmtopng</H1> -Updated: July 2015 +Updated: 09 October 2016 <BR> <A HREF="#index">Table Of Contents</A> @@ -217,7 +217,7 @@ think it would, using <b>-palette</b> in this case wouldn't even save describe how the color values in the PNG must be interpreted. Without the gAMA chunk, whatever interprets the PNG must get this information separately (or just assume something standard). If your input is a true -PPM or PGM image, you should specify <b>-gamma=.45</b>. But sometimes +PPM or PGM image, you should specify <b>-gamma=.52</b>. But sometimes people generate images which are ostensibly PPM except the image uses a different gamma transfer function than the one specified for PPM. A common case of this is when the image is created by simple hardware that doesn't |