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 multiply­
       ing 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 pre­
       fix.


SEE ALSO

       pnmarith(1), pgm(5)


AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.


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