NAME
pgmramp - generate a grayscale ramp
SYNOPSIS
pgmramp -lr|-tb | -rectangle|-ellipse width height
DESCRIPTION
Generates a graymap of the specified size containing a black-to-white
ramp. These ramps are useful for multiplying with other images, using
the pnmarith tool.
OPTIONS
-lr A left to right ramp.
-tb A top to bottom ramp.
-rectangle
A rectangular ramp.
-ellipse
An elliptical ramp.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmarith(1), pgm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
24 November 1989 pgmramp(1)