Research And Implementation On Digital Watermarking Based On Excel

The fast development of the technology in computer network brings both chances and challenges to digital products.The most important of those challenges is the copyright protection of digital products, and the technology of digital watermarking provides a method to solve this problem.However, the achievement of digital watermarking has been concentrated on images, audio and video.The paper document has been paid little attention to.Now, the research on watermarking pays little attention to the system of the text watermarking, which still has several problems such as vulnerability, low capacity, and weak invisibility. In order to solve those problems, this paper puts forward three levels of the research on the text watermarking: the application level, the object level and the storage level.And then from the object level and the storage level we design an algorithm of the text watermarking based on the object model and the storage structure of Excel and make the experimental verification.The result shows that the new algorithm has excellent invisibility, strong robustness, and large capacity.The research on the text watermarking solves the problem of the lack of system and the limit of robustness and capacity on the text watermarking.It is a beneficial attempt to the research on the text watermarking. It is helpful for the development of the field of the text watermarking.