+#!/bin/sh
+
+if [ "$help" = "1" ]
+then
+ cat << EOF
+Luma options:
+
+ --luma-compress - Produce compressed (png) lumas
+ --luma-8bpp - Produce 8 bit pgm lumas (defaut is 16 bit)
+
+EOF
+
+else
+
+ rm -f .8bit .compress .executed
+
+ for i in "$@"
+ do
+ case $i in
+ --luma-compress ) touch .compress ;;
+ --luma-8bit ) touch .8bit ;;
+ esac
+ done
+
+fi
+