基于多小波的数字水印优化  

Digital Watermarking Multi-objective Optimization Based on Multi-wavelet

作　　者：徐升华[1,2] 谭亮[1,2] 

机构地区：[1]江西财经大学信息管理学院 [2]江西财经大学信息资源研究所

出　　处：《管理学报》2011年第12期1847-1850,共4页Chinese Journal of Management

摘　　要：为了提高数字水印的实用性,必须保证水印的鲁棒性和透明性,为此充分考虑人类视觉系统特性,提出了一种基于多小波的数字水印优化方法。该方法利用Sa4多小波基进行数字水印嵌入,引入多目标优化手段对其嵌入深度进行优化调整,得到最佳嵌入效果。通过遗传算法实现的结果表明,该算法不仅对水印的攻击具有强鲁棒性,且能兼顾载体图像的质量。In order to enhance the practicality of digital watermarking, watermark perceptibility and robustness must be ensured. Taking human visual system characteristics into account fully, a digital watermarking multi objective optimization method is proposed. It utilizes Sa4 multi-wavelet to embed digital watermark, and uses multi objective optimization method based on genetic algorithm to optimize and adjust the embedded depth to obtain optimal effect. Experiments show the new algorithm we proposed not only is robust to attacks, but also ensures the quality of watermarking-embed image.

关 键 词：多目标优化 Sa4多小波 人类视觉系统 遗传算法 

分 类 号：C93[经济管理—管理学] TP391.1[自动化与计算机技术—计算机应用技术]