Characters and common attacks of transform domain digital watermark system were analyzed on emphasis. And we give some corresponding countermeasures.
着重分析了变换域数字水印系统的特征及常见攻击，给出了一些相应的对策。
Characters and common attacks of transform domain digital watermark system were analyzed on emphasis. And we give some corresponding countermeasures.
着重分析了变换域数字水印系统的特征及常见攻击，给出了一些相应的对策。
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