Zhouchen Lin Junfeng He Xiaoou Tang Chi-Keung Tang Fast, automatic and fine-grained tampered JPEG image detection via DCT coefficient analysis. 2492-2501 2009 42 Pattern Recognition 11 http://dx.doi.org/10.1016/j.patcog.2009.03.019 db/journals/pr/pr42.html#LinHTT09