00298nas a2200109   4500000000100000000000100001008004100002100001900043700001500062245010500077490000600182       2009                            d1 aJiang Mingfang1 aZhu Ningbo00aImage fragile watermarking algorithm based on BTC domain (基于 BTC 域的图像脆弱水印算法)0 v3