Abstract: Computer graphics rendering software is capable of generating highly photorealistic images that can be impossible to differentiate from photographic images. As a result, the unique stature of photographs as a definitive recording of events is being diminished (the ease with which digital images can be manipulated is, of course, also contributing to this demise). To this end, we describe a method for differentiating between photorealistic and photographic images. Specifically, we show that a statistical model based on first-order and higher order wavelet statistics reveals subtle but significant differences between photorealistic and photographic images.
@article{Lyu:2005ab,
author = {Siwei Lyu and Hany Farid},
url = {http://www.ists.dartmouth.edu/library/31.pdf},
journal = {IEEE Transactions on Signal Processing},
number = {2},
volume = {53},
year = {2005},
title = {How realistic is photorealistic?},
pages = {845--850},
}