摘要
提出了一种利用通信分析理论和快速响应代码的数字水印算法.首先数字水印的问题被分别解释为一种含有水印数据表示法的信号通讯问题,嵌入水印和攻击检测作为一种信源编码、信道编码和衰减检测问题.然后,使用快速响应代码形式的数据表示法,使得任何形式的嵌入数据都能被使用,如商标或标签,扩展了可用性;最后,将含密代码嵌入到宿主图像一级DWT域的HH中,并使用一种独特的图像注册码来匹配检测恶意攻击,提升了攻击鲁棒性.从实验数据可以看出,该文算法在大多数情况下拥有最高的PSNR、SSIM和NCC值,且在隐藏性和抗攻击鲁棒性方面优于其他优秀算法.
A new digital watermarking algorithm using information-theoretic analysis and quick response codes is proposed.Firstly,the problem of the digital watermark is interpreted as a signal communication problem with watermark data representation.The embedded watermark and attack detection are being as the issues of source coding,channel coding and attenuation inspection.Then,the use of quick response code form for data representation makes that any form of embedded data can be used,such as logo or label,expanding availability.Finally,codes containing secret are embedded in the host image HH-level in DWT domain and a unique image registration code is used to match detecting malicious attacks,improving the robustness of the attack greatly.As can be seen from the experimental data,the proposed algorithm has the highest PSNR,SSIM and NCC values in most cases.The proposed algorithm is much better in the aspect of hidden and robustness than other outstanding algorithms.
出处
《湘潭大学自然科学学报》
CAS
北大核心
2016年第1期78-81,共4页
Natural Science Journal of Xiangtan University
基金
柳州市科技课题(2014C030402)
来宾市科技攻关课题(143620)
广西科技师范学院科研团队项目(LX2014500)
关键词
数字水印
快速响应代码
信号通信
图像注册代码
鲁棒性
digital watermarking
quick response code
signal communication
image registration code
robustness
