The names of the images are:
Clegg814x880x24 (artistic)
Frymire1118x1105x24 (artistic)
Lena512x512x24 (natural)
Monarch768x512x24 (natural)
Peppers512x512x24 (natural)
Sail768x512x24 (natural)
Serrano629x794x24 (artistic)
Tulips768x512x24 (natural)
Other images from the Waterloo Repertoire are found in GreySet1 and GreySet2 .