img/make-bd.sh

   1 #!/bin/sh
   2
   3 for f in bd* ; do
   4     orig=b_${f##bd_}
   5     if [ -f $f ] ; then
   6         convert $orig -modulate 90,90 -colorspace Gray $f
   7     fi
   8 done
   9 convert eye.png -colorspace Gray eye_grey.png