xpmtoppm (1)

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NAME

xpmtoppm - convert an X11 pixmap into a portable pixmap

SYNOPSIS

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

DESCRIPTION

Reads an X11 pixmap (XPM version 1 or 3) as input. Produces a PPM file 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 contains all white (opaque) alpha values. If you don't specify --alphaout, xpmtoppm does not generate an alpha file, and if the input image has transparency information, xpmtoppm simply discards it.

If you specify - as the filename, xpmtoppm writes the alpha output to Standard Output and discards the image.

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

--verbose

xpmtoppm prints information about its processing on Standard Error.

LIMITATIONS

The support to XPM version 3 is limited. Comments can only be single lines and there must be for every pixel a default colorname for a color type visual.

SEE ALSO

ppmtoxpm(1), pnmcomp(1), ppm(5)

AUTHOR

Copyright (C) 1991 by Jef Poskanzer.

Upgraded to support XPM version 3 by
    Arnaud Le Hors (lehors@mirsa.inria.fr)
    Tue Apr 9 1991

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