Yanqun Zhang

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  • Yanqun Zhang
  • 2009 ETP International Conference on Future…
  • 2009
Digital Watermarking is a technology of embedding watermark with intellectual property rights into images, videos, audios and other multimedia data by a certain algorithm. The basic characteristics of digital watermark is imperceptible, security, reliability, low complexity of watermarking algorithm and security of the hiding place. Digital Watermarking(More)
In order to resolve the security problems due to the dynamics and uncertainty of grid environment, a trust model based on autonomous domain is developed in this paper, it discriminates the trust relationships between entities in the same autonomous domain and in different domains and handles the two different trust relationships in different approaches. By(More)
Watermarking is theory of protecting the documents from illegal copying, redistribution of the documents and to preventing from copyright violation. The document Watermark created in manner that it's inaccessible to the document viewer in normal circumstances. There are two main issues regarding web document watermarking is imperceptibility and(More)
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