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 con­
              taining 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(1) for one way to use the alpha  output
              file.

       All  options  can  be abbreviated to their shortest unique
       prefix.


SEE ALSO

       pnmcomp(1), ppm(5)


AUTHOR

       Copyright (C) 1991 by Jef Poskanzer.


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