# ximtoppm

Updated: April 2, 2000
Index

## NAME

ximtoppm - convert an Xim file into a portable pixmap

## SYNOPSIS

ximtoppm [--alphaout={alpha-filename,-}] [ximfile]

## DESCRIPTION

Reads an Xim file as input. Produces a portable pixmap as output. The Xim toolkit is included in the contrib tree of the X.V11R4 release.

## OPTIONS

--alphaout=alpha-filename
  ximtoppm creates a PGM (portable graymap) 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 pnmcomp for one way to use the alpha output file.

All options can be abbreviated to their shortest unique prefix.

## SEE ALSO

pnmcomp, ppm

## AUTHOR

Copyright (C) 1991 by Jef Poskanzer.

## Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
AUTHOR