基于数字全息和DCT-SVD的鲁棒数字水印研究

发布时间：2018-05-30 09:32

本文选题：数字全息 + Arnold置乱　；参考：《华东理工大学》2014年硕士论文

【摘要】：如今,互联网技术是最热门的信息技术之一,伴随着互联网的进一步发展,网络中的数字作品已经渗透我们生活的方方面面,这些信息科学技术给我们生活带来的极大的便利。但是,人们在享受多媒体以及数字传输技术带来便利的同时,也承担了便利所带来的风险,数字多媒体作品的保护越来越困难。越来越多的数字作品的版权侵犯问题出现,这种恶意篡改、版权侵犯等等行为严重损害了原创作者的利益,面对这种版权侵犯的严重现象,数字水印的研究具有十分重要的意义,以用于知识产权的保护,维护作者利益。数字水印就是将数据信息嵌入多媒体媒介诸如图像,音频或者视频文件中；该水印能够从多媒体信息中提取而用于多媒体信息安全。鲁棒数字水印,要求嵌入水印有很强的抗攻击性。本文结合全息图的不可撕毁性,DCT的抗噪抗压缩能力,SVD良好的几何特征,通过将原始水印信息进行数字全息变换后作为嵌入水印,再进行Arnold置乱加密后在奇异值上嵌入,使得该水印方案具有很好的鲁棒性。本文将具有互补性的水印处理方法相结合,提出一种基于数字全息和DCT-SVD的鲁棒数字水印研究方案再经过试验仿真验证该方案很好的鲁棒性。
[Abstract]:Nowadays, Internet technology is one of the most popular information technologies, with the further development of the Internet, digital works in the network have penetrated into all aspects of our lives, these information technology has brought us great convenience in life. However, people not only enjoy the convenience brought by multimedia and digital transmission technology, but also bear the risk of convenience. The protection of digital multimedia works is becoming more and more difficult. More and more digital works of copyright infringement appear, such malicious tampering, copyright infringement and other acts seriously damaged the interests of the original creator, faced with this serious phenomenon of copyright infringement, The research of digital watermarking is of great significance for the protection of intellectual property rights and the protection of the interests of the author. Digital watermarking is to embed data information into multimedia media such as images audio or video files which can be extracted from multimedia information for multimedia information security. Robust digital watermarking is required to be robust to attack. In this paper, according to the good geometric characteristics of the anti-noise and anti-compression ability of holograms, the original watermark information is transformed into digital holography as embedded watermark, and then Arnold scrambling encryption is used to embed the singular value. The watermark scheme has good robustness. In this paper, a robust watermarking scheme based on digital holography and DCT-SVD is proposed, and the robustness of the scheme is verified by simulation.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP309.7

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