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       ximtoppm - convert an Xim file into a portable pixmap


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


       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.


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

       All options can be abbreviated to their shortest unique prefix.


       pnmcomp(1), ppm(5)


       Copyright (C) 1991 by Jef Poskanzer.

                                          April 2, 2000                               ximtoppm(1)