@conference {690, title = {Optimal counterforensics for histogram-based forensics}, booktitle = {IEEE International Conference on Audio, Speech and Signal Processing}, year = {2013}, pages = {3048-3052}, publisher = {IEEE}, organization = {IEEE}, address = {Vancouver, Canada}, author = {Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez} }