xpmtoppm (1)

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

Reads an X11 pixmap (XPM version 1 or 3) as input. Produces a PPM file as output.

--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.

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.

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

Copyright (C) 1991 by Jef Poskanzer.

Upgraded to support XPM version 3 by

    Arnaud Le Hors ([email protected])
    Tue Apr 9 1991