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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2018-11-04 18:12:44 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2018-11-04 18:12:44 +0000 |
| commit | bb0e4eada61ed7a2dd2c7dad4571457f5a97fc83 (patch) | |
| tree | 6730d1420f2fc8148bb5750a681228e9468d0663 /pamtotga.html | |
| parent | ea4ccc82bcaf4fdf8154567808ddf1c71bf983d8 (diff) | |
| download | netpbm-mirror-bb0e4eada61ed7a2dd2c7dad4571457f5a97fc83.tar.gz netpbm-mirror-bb0e4eada61ed7a2dd2c7dad4571457f5a97fc83.tar.xz netpbm-mirror-bb0e4eada61ed7a2dd2c7dad4571457f5a97fc83.zip | |
miscellaneous update
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@3418 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'pamtotga.html')
| -rw-r--r-- | pamtotga.html | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/pamtotga.html b/pamtotga.html index 6653850c..dd7d9c2f 100644 --- a/pamtotga.html +++ b/pamtotga.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pamtotga User Manual</TITLE></HEAD> <BODY> <H1>pamtotga</H1> -Updated: 12 June 2008 +Updated: 04 November 2018 <BR> <A HREF="#index">Table Of Contents</A> @@ -51,9 +51,26 @@ image with maxval 255. <DL COMPACT> <DT><B>-cmap</B> <DD> -Make output Targa file of type 24 bit colormapped. Input must contain no -more than 256 distinct colors. +Make output Targa file of type 24 bit colormapped. Each color is 8 bits +each of red, green, and blue, stored as 3 bytes for each distinct color in +the image. +<p>Input must contain no more than 256 distinct colors and must not contain + transparency information. + +<p>(The transparency limitation is not a limitation of the format, but + of <b>pamtotga</b>. Implementing a color map that contains transparency + information is harder to implement). + +<DT><B>-cmap16</B> +<DD> +Same as <b>-cmap</b>, except colors are 5 bits each of red, green, and blue, +stored as two bytes(16 bits) for each distinct color in the image. + +<p>Restrictions are the same as for <b>-cmap</b>. + +<p>This option was new in Netpbm 10.85 (December 2018). + <DT><B>-mono</B> <DD> Make output Targa file of type 8 bit monochrome. Input must be PBM or PGM @@ -109,7 +126,7 @@ channel, so it became a PAM class program. Netpbm package to recognize a transparency channel in a PAM. It recognized tuple type "RGBA". But when this kind of PAM image was later added to the PAM specification, it was specified with tuple type -"RGB_ALPHA". So in Netpbm 10-26 (January 2005), <b>pamtotga</b> +"RGB_ALPHA". So in Netpbm 10.26 (January 2005), <b>pamtotga</b> changed to recognize "RGB_ALPHA" instead of "RGBA". <H2 id="author">AUTHOR</H2> |