xpmtoppm(1) - phpMan

Xpmtoppm User Manual(0)                                                   Xpmtoppm User Manual(0)



NAME
       xpmtoppm - convert an X11 pixmap to a PPM image


SYNOPSIS
       xpmtoppm

       [--alphaout={alpha-filename,-}] [-verbose]

       [xpmfile]


DESCRIPTION
       This program is part of Netpbm(1).

       xpbtoppm  reads  an  X11  pixmap (XPM version 1 or 3) as input and produces a PPM image as
       output.


OPTIONS
       --alphaout=alpha-filename
              xpmtoppm creates a PBM file containing the transparency mask for the image.  If the
              input  image doesn't contain transparency information, the alpha-filename file con-
              tains all white (opaque) transparency values.  If  you  don't  specify  --alphaout,
              xpmtoppm  does  not generate a transparency file, and if the input image has trans-
              parency information, xpmtoppm simply discards it.

              If you specify - as the filename, xpmtoppm writes the transparency output to  Stan-
              dard Output and discards the image.

              See pamcomp(1) for one way to use the transparency output file.

              xpmtoppm  can't  handle  a  line longer than 8K characters in the XPM input.  If an
              input line exceeds this limit, xpmtoppm quits with an error message to that effect.
              Before Netpbm 10.30 (October 2005), the limit was 2K.


       --verbose
              xpmtoppm prints information about its processing on Standard Error.




LIMITATIONS
       xpmtoppm  recognizes  only a limited set of the features of XPM Version 3; i.e. it rejects
       as invalid many valid XPM images.

       The only place a comment block is valid is starting in Column 1 of  the  line  immediately
       after "static char ...".

       In  addition, ppmtoxpm properly recognizes any single-line comment that begins in Column 1
       in the color table part of the file.

       There must be for every pixel a default colorname for a color type visual.

       Before Netpbm 10.58 (March 2012), zero bytes per pixel causes the program to fail  with  a
       message about premature EOF on input.


SEE ALSO
       ppmtoxpm(1), pamcomp(1), ppm(1)


AUTHOR
       Copyright (C) 1991 by Jef Poskanzer.

       Upgraded  to  work  with XPM version 3 by Arnaud Le Hors<lehors AT mirsa.fr>, Tue Apr 9
       1991.

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/xpmtoppm.html

netpbm documentation                     31 December 2011                 Xpmtoppm User Manual(0)

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