pgmramp
Section: User Commands (1)
Updated: 24 November 1989
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.