Public watermarks and resistance to tampering
Public watermarks and resistance to tampering
复制标题
公共水印和防篡改
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
J. Linnartz
中科院分区：
文献类型：
--
作者：
I. Cox;J. Linnartz
公共水印允许出于各种目的从音频和视频内容中提取嵌入的信号。一个应用是版权控制，其中设想数字视频记录器将不允许记录被水印标记为“永不复制”的内容。在这种情况下，重要的是水印在正常信号变换和试图移除水印两者中幸存，使得可以进行非法拷贝。在本文中，我们讨论了在何种程度上的公共水印可以抵抗篡改，并描述了各种可能的
Public watermarks allow embedded signals to be extracted from audio and video content for a variety of purposes. One application is for copyright control, where it is envisaged that digital video recorders will not permit the recording of content that is watermarked as "never copy". In such a scenario, it is important that the watermark survive both normal signal transformations and attempts to remove the watermark so that an illegal copy can be made. In this paper, we discuss to what extent a public watermark can be resistant to tampering and describe a variety of possible