00331nas a2200121   4500000000100000000000100001008004100002260003600043100001800079700001600097700002000113245007600133       2009                            d  c24-27 May 2009aTaipei, Taiwan 1 aJing-Ming Guo1 aMin-Feng Wu1 aYong-Chuen Kang00aWatermarking in conjugate ordered dither block truncation coding images