@article {796, title = {Forensic detection of processing operator chains: recovering the history of filtered JPEG images}, journal = {IEEE Transactions on Information Forensics and Security}, year = {2015}, keywords = {compass, forensics}, doi = {10.1109/TIFS.2015.2424195}, author = {Valentina Conotter and Pedro Comesa{\~n}a and Fernando P{\'e}rez-Gonz{\'a}lez} }