图像盲水印算法的遗传优化  

Optimizing Image Blind Watermarking Using Genetic Algorithm

作　　者：方志军[1] 罗桂华[1] 李润午[1] 谭亮[1] 

机构地区：[1]江西财经大学信息管理学院,南昌330013

出　　处：《中国图象图形学报》2008年第10期1934-1937,共4页Journal of Image and Graphics

基　　金：江西省自然科学基金项目(2007GZS0043)

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,为此在Cox等人提出的水印稳健性理论的指导下,充分考虑人类视觉系统特性,提出了一种基于遗传算法的图像盲水印算法。通过基于小波边缘的检测,调节系数差,实现了水印透明性和鲁棒性的综合优化。实验结果表明,该算法不仅对于水印的攻击具有强鲁棒性,且兼顾载体图像的质量。To improve the practicability of digital watermarking, watermarking imperceptibility and robustness must be ensured. Under the instruction of watermarking robust theory proposed by Cox et al, considering human vision system characteristics fully, a blind digital watermark method based on genetic algorithm is proposed. By adjusting coefficient difference based on edge detection in wavelet transformation domain, integrative optimization of watermarking imperceptibility and robustness is implemented. Experiment show that the method we proposed not only is robust to attacks, but ensures the quality of watermarking-embed image.

关 键 词：盲水印 遗传算法 DCT 小波变换 人类视觉系统 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]