#!/bin/bash
#		  /usr/local/bin/makesig
# http://crystalfaeries.net/posix/bin/makesig
# http://www.linuxmagazine.com/ Volume 8 Issue 8 Page 19 by Jerry Peek http://jpeek.com/contact.html

# makesig - outputs -sigmoidal-contrast instruction strings to standard output for use by dosig().
echo "+clone -sigmoidal-contrast ${2},${3}% -write ${1}_${2}_${3}.png +delete"