摘要
随着数字产品的广泛应用且存在有巨大的商业价值,其内容的安全性已成为备注关注的课题。数字水印技术是为了保护数字内容的版权而产生的,它通过一定的算法将一些标志性信息直接嵌到数字产品内容中作为数字产品拥有权的依据。水印嵌入算法较多,该文设计一种常见的基于DCT域的鲁棒性水印。通过实验结果表明,DCT域嵌入的水印具有较好的隐藏性和较强的鲁棒性。
With the extensive application of digital products and the existence of a huge commercial value,the security of its content has become an issue of particular concern.Digital watermarking technology is created to protect the copyright of digital content.It will directly embed a number of landmark information into the content of digital product as a basis for the ownership of digital products.Watermark embedding algorithms are more common,this paper aims to design a DCT-based robust watermarking.The experimental results show that,DCT domain watermark embedding is easy to hidden and has good robustness.
作者
韩武光
郑宇阳
吴清秀
HAN Wu-guang1,ZHENG Yu-yang2,WU Qing-xiu1(1.Hainan Software Institute,Qionghai 571400,China;2.Hainan Nomal Univertity,Haikou 571158,China)
出处
《电脑知识与技术》
2009年第12X期10472-10473,共2页
Computer Knowledge and Technology
基金
海南软件职业技术学院院级科研项目(Hr200803,Hr200804)
关键词
数字水印
鲁棒
离散余弦变化
digital watermarking
robust
discrete cosine transformation(DCT)
