Higher-order Wavelet Statistics and their Application to Digital Forensics
Hany Farid, Siwei Lyu · 2003
We describe a statistical model for natural images that is built upon a multi-scale wavelet decomposition. The model consists of first- and higher-order statistics that capture certain statistical regularities of natural images. We show how this model can be useful in several digital forensic applications, specifically in detecting various types of digital tampering.