Based on the ( above ) idea, an image content holding strategy and the algorithm are proposed.

在此基础上, 提出了具有内容保持的嵌入策略及改进算法.

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Watermark according the several - for - one principle is embedded in the image content using additive method.

在提取部分图像内容的基础上,按照多对一的原则,使用改进的加性方法嵌入水印信息.

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