Ximtoppm User Manual(1) General Commands Manual Ximtoppm User Manual(1)
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 out-
put. The Xim toolkit is included in the contrib tree of the X.V11R4
release.
OPTIONS
In addition to the options common to all programs based on libnetpbm
(most notably -quiet, see
Common Options ⟨index.html#commonoptions⟩ ), ximtoppm recognizes the
following command line option:
You can abbreviate any option to its shortest unique prefix.
--alphaout=alpha-filename
ximtoppm creates a PGM file containing the transparency channel
values in the input image. If the input image doesn't contain a
transparency channel, the alpha-filename file contains all zero
(transparent) transparency values. If you don't specify --al-
phaout, ximtoppm does not generate a transparency file, and if
the input image has a transparency channel, ximtoppm simply dis-
cards it.
If you specify - as the filename, ximtoppm writes the transpar-
ency output to Standard Output and discards the image.
Actually, an Xim image can contain an arbitrary fourth channel
-- it need not be a transparency channel. ximtoppm extracts any
fourth channel it finds as described above; it doesn't matter if
it is a transparency channel or not.
See pamcomp(1) for one way to use the transparency output file.
SEE ALSO
pamcomp(1), ppm(1)
AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
DOCUMENT SOURCE
This manual page was generated by the Netpbm tool 'makeman' from HTML
source. The master documentation is at
http://netpbm.sourceforge.net/doc/ximtoppm.html
netpbm documentation 02 April 2000 Ximtoppm User Manual(1)
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