之后，利用基于盲源分离理论的混合模型和分离模型，实现对水印信息的嵌入和提取。
Then, using the mixing model and separating model based on BBS theory to realize the embedding and extracting watermark information.
盲信号提取主要研究如何把源信号逐个从观察信号中提取出来。
Blind signal extraction researches mainly on how to extract the source signal sequentially from the mixed signals.
利用混合的方法嵌入水印，再利用盲源JADE算法提取水印。
Iterative mixing embeds watermarking are used and extracting the watermarking by blind JADE algorithm.
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