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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2007-01-21 18:34:51 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2007-01-21 18:34:51 +0000 |
| commit | 10009ad8936b152ef260ed5297af713a6a41a6ff (patch) | |
| tree | 3aa405c912e84b307708aa079dc3e503d0f08b1b /pnmtops.html | |
| parent | 618268ebc4894cb31e8f7b4d415593e97edc6a04 (diff) | |
| download | netpbm-mirror-10009ad8936b152ef260ed5297af713a6a41a6ff.tar.gz netpbm-mirror-10009ad8936b152ef260ed5297af713a6a41a6ff.tar.xz netpbm-mirror-10009ad8936b152ef260ed5297af713a6a41a6ff.zip | |
"miscellaneous update"
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@213 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'pnmtops.html')
| -rw-r--r-- | pnmtops.html | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/pnmtops.html b/pnmtops.html index ea312fce..d6c9ae5b 100644 --- a/pnmtops.html +++ b/pnmtops.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pnmtops User Manual</TITLE></HEAD> <BODY> <H1>pnmtops</H1> -Updated: 10 February 2006 +Updated: 21 January 2007 <BR> <A HREF="#index">Table Of Contents</A> @@ -188,7 +188,7 @@ its shape; If you specify <B>-noturn</B>, <B>pnmtops</B> does compression in encoding the image in the Postscript program. This may save time if the host-to-printer link is slow; but normally the printer's processing time dominates, so <B>-rle</B> has no effect (and -in the absence of buffering, may make things slower. +in the absence of buffering, may make things slower). <p>This may, however, make the Postscript program considerable smaller. @@ -217,6 +217,14 @@ same as PNG). <p>Before Netpbm 10.32 (February 2006), you could not specify <b>-rle</b> and <b>-flate</b> together. +<p>This sometimes produces what is probably an incorrect image -- one +that is missing the lower rows. This appears to be an implementation +problem in the flate compressor, but we don't know what it is. We +also don't know on which images it has the problem. (January 2007). +We provide <a href="flatebug.png">an example</a> of an image with which +<b>pnmtops</b> appears to have the problem. (Convert it to PGM with +<b>pngtopnm</b> and feed that to <b>pnmtops</b>). + <dt><b>-ascii85</b> <dd>By default, <b>pnmtops</b> uses "asciihex" encoding of |