【Key words】 digital watermarking； watermark attack； watermark security； watermark robustness； asymmetric watermarking； symmetric watermarking；
基于6个网页-相关网页
watermark attack model 水印攻击模型
digital watermark attack 数字水印攻击
Watermark-Specified Attack 指定水印攻击
watermark estimation attack 水印估计攻击
attack on watermark 水印攻击
Furthermore, we briefly introduce some kinds of existed steganalysis methods and digital watermark attack methods.
此外，我们还简单介绍了几种信息隐藏分析方法和水印攻击方法。
In the design of watermark encoder, through the combination of side information and watermark, our system also obtained the robustness against copy attack.
在水印编码的设计上，通过将载体的个性信息与水印融合，使整个系统对拷贝攻击也具有鲁棒性。
Test results show that embedding around video quality has not changed significantly, in the absence of attack detection of the watermark and the original watermark than no obvious changes.
试验结果表明，水印嵌入前后，视频质量没有显明的变化，在无攻击时检测到的水印信息和原水印信息比拟也没有显明的变化。
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