Sung-Cheal Byun Sang-Kwang Lee Ahmed H. Tewfik Byung-Ha Ahn A SVD-Based Fragile Watermarking Scheme for Image Authentication. 170-178 2002 conf/iwdw/2002 IWDW http://dx.doi.org/10.1007/3-540-36617-2_14 db/conf/iwdw/iwdw2002.html#ByunLTA02