[hojijoji]

for some reaso they do not show the uncompressed image for comparison

[syberspace]

They mentioned the Kodak dataset[1] in the second paragraph. It seems to be Kodak Image 15[2]

edit: as for the other images: it would be indeed nice to see those.

[1] http://r0k.us/graphics/kodak/ [2] http://r0k.us/graphics/kodak/kodim15.html