基于MATLAB的复合数字水印认证系统的设计与应用

摘要

为实现多媒体图像的知识产权保护,进行有效的防篡改认证,设计了复合数字水印认证系统.利用该系统可以对单个或批量的多媒体图像嵌入鲁棒性水印及脆弱性水印.仿真实验证明,多媒体数字图像嵌入复合数字水印后和原始图像几呼一样,水印隐蔽效果好;当图像被篡改后,用该系统进行水印认证,可以清晰看到版权标志信息是否被篡改以及定位显示篡改的内容.%To achieve multi-media image intellectual property protection, effective tamper-resistant authentication, the design of complex digital watermark authentication system. This system can be single or batch of media images embedded watermark robustness and fragility of the watermark. The simulation results show, multimedia digital image watermark embedding compound and the original image after a few calls like invisibility effect is good, when the image was tampered with the system into the watermarking authentication, can clearly see the copyright symbol information has been tampered with,and location shows tampering with the contents.