.TL
Ximtoppm User Manual
.SH 1
ximtoppm
.LP
Updated: April 2, 2000
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Table Of Contents
.SH 2
NAME
.LP
ximtoppm - convert an Xim file to a PPM image
.SH 2
SYNOPSIS
.LP
\fBximtoppm\fR
[\fB--alphaout=\fR{\fIalpha-filename\fR,\fB-\fR}]
[\fIximfile\fR]
.LP
You can abbreviate any option to its shortest unique prefix.
.SH 2
DESCRIPTION
.LP
.LP
This program is part of Netpbm.
.LP
\fBximptoppm\fR 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.
.SH 2
OPTIONS
.LP
.RS
.IP "\fB--alphaout=\fR\fIalpha-filename\fR"
\fBximtoppm\fR creates a PGM file containing the alpha channel
values in the input image.  If the input image doesn't contain an
alpha channel, the \fIalpha-filename\fR file contains all zero
(transparent) alpha values.  If you don't specify \fB--alphaout\fR,
\fBximtoppm\fR does not generate an alpha file, and if the input
image has an alpha channel, \fBximtoppm\fR simply discards it.
.LP
If you specify \fB-\fR as the filename, \fBximtoppm\fR writes the
alpha output to Standard Output and discards the image.
.LP
Actually, an Xim image can contain an arbitrary fourth channel --
it need not be an Alpha channel.  \fBximtoppm\fR extracts any fourth
channel it finds as described above; it doesn't matter if it is an
alpha channel or not.
.LP
See \fBpamcomp\fR for one way to use
the alpha output file.
.RE
.SH 2
SEE ALSO
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\fBpamcomp\fR,
\fBppm\fR
.SH 2
AUTHOR
.LP
.LP
Copyright (C) 1991 by Jef Poskanzer.
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\l'5i'
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Table Of Contents
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