Minoru Kuribayashi Hatsukazu Tanaka A Watermarking Scheme Based on the Characteristic of Addition among DCT Coefficients. 1-14 http://link.springer.de/link/service/series/0558/bibs/1975/19750001.htm 2000 conf/isw/2000 ISW db/conf/isw/isw2000.html#KuribayashiT00