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Digital colour watermarking has become essential and important copyright protection schemes in multimedia industry. Distribution of digital documents, especially colour images, over the internet has also become increasingly cost-efficient and widespread. The increased importance of digital media brings new challenges for securing the distribution of digital multimedia to make it both profitable for...
Internet evolution, along with the advancement of digital multimedia tools have create a major impact in making the storage and distribution of multimedia content a straightforward tasks. Thus security of multimedia contents becomes a vital issue and there is a need in protecting the digital content against counterfeiting, piracy and malicious manipulations. Digital watermarking is an evolving field...
Featured in bad robustness, the single watermarking algorithm of GIS vector data can't meet people's need in some aspects. Yet, the multiple watermarking can embed several watermarks in the host in one way or several ways, making up the disadvantages of the traditional watermarking to some degree. However, many multiple watermarking studies are focused on the multimedia, and fewer on GIS vector data...
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