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ximtoppm
Langue: en
Version: April 2, 2000 (fedora - 04/07/09)
Section: 1 (Commandes utilisateur)
NAME
ximtoppm - convert an Xim file to a PPM image
SYNOPSIS
ximtoppm
[--alphaout={alpha-filename,-}] [ximfile]
DESCRIPTION
This program is part of Netpbm(1).
ximptoppm reads an Xim file as input and produces a PPM image as output. The Xim toolkit is included in the contrib tree of the X.V11R4 release.
OPTIONS
You can abbreviate any option to its shortest unique prefix.
- --alphaout=alpha-filename
- ximtoppm creates a PGM file containing the alpha channel values in the input image. If the input image doesn't contain an alpha channel, the alpha-filename file contains all zero (transparent) alpha values. If you don't specify --alphaout, ximtoppm does not generate an alpha file, and if the input image has an alpha channel, ximtoppm simply discards it.
If you specify - as the filename, ximtoppm writes the alpha output to Standard Output and discards the image.
Actually, an Xim image can contain an arbitrary fourth channel -- it need not be an Alpha channel. ximtoppm extracts any fourth channel it finds as described above; it doesn't matter if it is an alpha channel or not.
See pamcomp(1)foronewaytouse the alpha output file.
SEE ALSO
pamcomp(1), ppm(1)AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
Contenus ©2006-2024 Benjamin Poulain
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