摘要
基于中频系数替换的水印算法在抵抗JEPG压缩攻击以及多种噪声攻击方面表现出较好的鲁棒性,但在抵抗剪切攻击方面表现不足.文章采用两组相同的水印,通过位置变换使得水印信息具有一定的互补性,通过重构,保证图像在水印信息的提取过程中的完整性.通过归一化值的测评,实验结果表现出了较好的性能.
Based on intermediate frequency coefficient of replacement watermarking algo- rithm show stronger robustness in resistance to jpeg compression attack and kinds of noise at- tack, but poor performances in terms of resistance to shear attack. Two sets of the same water- mark are adopted in this paper. Through position transformation makes the watermark has a cer- tain complementarity. Through refactoring to ensure the integrity in the process of the extraction of the watermark information. By the normalized value assessment, the experimental results show a good performance.
出处
《太原师范学院学报（自然科学版）》
2014年第3期63-66,共4页
Journal of Taiyuan Normal University:Natural Science Edition
关键词
数字水印
剪切攻击
完整性
鲁棒性
digital watermarking
shear attack
integrity
robustness
