联合可逆可见水印与数字指纹的文档图像版权保护方案

Documental Image Copyright Protection Scheme Combining Invertible Visible Watermark and Digital Fingerprint

为有效保护数字文档图像版权,设计了一种新的文档图像版权保护方案,利用可逆可见水印权衡文档共享与版权保护之间的矛盾,依靠用户身份信息的数字指纹追踪认证用户泄密行为。仿真实验表明,该方案具有较高的隐秘图像质量和可见水印清晰度,可应用于数字文档图像版权保护实践之中。

To protect the copyright of digital documental images,a new documental image copyright protection scheme is pro-posed.The invertible visible watermark is used to achieve the balance between documental resources share and copyright protection.At the same time,a digital fingerprint sequence dependent of user information is used to trace traitors.Experiment results demonstrate the proposed scheme has high visual quality of watermarked images and good watermark visibility,and it can be applicable to copyright protection of documental images.