经实验证明，对水印文本进行格式调整、特征修改甚至部分内容删除等操作均不能去除水印。
It shows according to experiments that the watermark cannot be wiped off with the format adjusting, characteristic amending or contents' deleting.
在第三章中，我们首先详细介绍了水印去除攻击、密钥攻击及协议攻击。
In the third chapter, we first detail some watermarking attacks including watermark removal attacks, cryptographic attacks and protocol attacks.
数字水印是嵌入宿主数据中、具有隐蔽性且不容易去除的数字信息。
A digital watermark is the information that is imperceptibly and robustly embedded in the host data such that it cannot be removed.
数字水印是嵌入宿主数据中、具有隐蔽性且不容易去除的数字信息。
A digital watermark is the information that is imperceptibly and robustly embedded in the host data such that it cannot be removed.
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