Original from:
<http://home.student.utwente.nl/v.t.c.bos/nlfoto/panorama/totaal2klein.jpg>

Command:
djpeg orig.jpg | srgbtoxyz | ./xyzlum -A -0.02 | ./xyzlum -g1.7 |
	./xyznld -s1.4 -g4 2>/dev/null | ./xyzlum -g4 | xyztosrgb -c |
	pnmdepth 255 |  cjpeg > /tmp/result.jpg