418090.fig.001a
(a) Lena
418090.fig.001b
(b) Baboon
418090.fig.001c
(c) Airplane
418090.fig.001d
(d) Peppers
418090.fig.001e
(e) Boat
418090.fig.001f
(f) Man
418090.fig.001g
(g) Elaine
418090.fig.001h
(h) Woman
Figure 1: Eight greyscale test images.