It studies JPEG model and watermarking model and proposes an algorithm of watermark in compression domain.

研究了JPEG压缩标准和数字水印模型，提出一种基于JPEG压缩的二值图像水印算法。

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According to the theory of the algorithm, the noise elimination algorithm based on noise model can also be extended to the other compression algorithms such as DCT, DPCM, JPEG, SPIHT and MPEG.

从算法的理论基础来看，其中基于噪声模型的噪声清除算法对其他编码算法(如dct、DPCM、JPEG、SPIHT、MPEG等等)同样具有推广意义。

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