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.