00294nas a2200109   4500000000100000000000100001008004100002260004100043100001800084700001500102245006700117       2009                            d  c18-20 Aug. 2009 aXi'an, China 1 aJing-Ming Guo1 aYun-Fu Liu00aMajority-Parity-Guided Watermarking for Block-Truncated Images