In this paper, a dual color image watermarking algorithm is proposed based on the research of color digital watermark.
本文对彩色水印技术进行了详细地研究，提出了一种双彩色数字水印方案。
At last we propose a half frangible watermark algorithm based on the theory of digital signature, which can authenticate the integrity of image.
最后本文还借用数字签名思想提出了一种基于半易损水印的实用的数字图像认证算法。
Embedding robust watermark and fragile watermark in one image simultaneously, an algorithm of compound, adaptive digital watermarking was presented.
提出一种同时嵌入鲁棒性水印和易损性水印的复合型数字水印算法。
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