A new image authentication system without signature insertion

数字水印被认为是解决多媒体数据版权保护和认证需求的一种可行方案。在最近的方法中，放置得很好的水印实际上是不可能看到的。然而，创作艺术作品的作者希望按原样分发自己的原创作品，而以前的方法不能满足这一要求。因此，本文提出了一种新的版权保护系统，该系统不污染原始图像。该系统由签名生成和签名提取两个功能组成。这两个函数都不会在原始图像中嵌入任何签名。因此，通过使用所提出的系统，所有者可以在版权保护的情况下分发自己的艺术作品。最后给出了仿真结果，验证了该系统的性能。

Digital watermarking has been proposed as a viable solution to need of copyright protection and authentication of multimedia data. Well-placed watermarks by in recent methods are practically impossible to see. Authors who make art works, however, desire to distribute their own original as it is, and the previous methods cannot satisfy such a requirement. Therefore, this paper proposes a new copyright-protection system, which does not contaminate the original images. The proposed system consists of two functions : signature generation and signature extraction. The both functions do not embed any signatures in the original images. Therefore, by using the proposed system, the owner can distribute his own art works with the copyright-protection. Some simulation results are presented to demonstrate the performance of this system.