Research and Implement of Digital Image Watermark Based on DCT

Abstract:

With the rapid development of communication technology and Internet technology, as well as the popularization of computer, the application of digital multimedia technology is more and more widely, video, voice and image gathering, editing, storage, and dissemination of digital information has become more and more convenient. However, it is because of the computer and the network popularization and the fragility of the digital information itself, digital multimedia data are more vulnerable to attack, digital products is also very easy to forged and tampered with. According to these digital multimedia data more easily by illegal processing problem, people put forward the concept of digital watermark. Digital watermark technology is used to realize the protection of digital information. In this paper, the digital watermark technology research starting from the practical application, the digital image watermark based on DCT domain is studied.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 4086-4090
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.4086
• Online since: July 2014
• Authors: Li Yan Liu*
• Keywords: Digital Watermarking, Discrete Cosine Transforms (DCT), Robust

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