Seungwu Han Masaaki Fujiyoshi Hitoshi Kiya An Efficient Reversible Image Authentication Method. 1907-1914 2008 91-A IEICE Transactions 8 http://dx.doi.org/10.1093/ietfec/e91-a.8.1907 db/journals/ieicet/ieicet91a.html#HanFK08