The images are:
Barb512x512x8 (natural)
Boat512x512x8 (natural)
France672x498x8 (natural)
Frog621x498x8 (natural)
goldihll512x512x8 (natural)
lena512x512x8 (natural)
library464x352x8 (natural)
mandrill512x512x8 (natural)
mountain640x480x8 (natural)
peppers512x512x8 (natural)
washsat512x512x8 (natural)
zelda512x512x8 (natural)
Other images from the Waterloo Repertoire are found in GreySet1 and ColorSet .