一种基于小波变换的模糊视觉感知水印算法  

A kind of watermarking algorithm Based on wavelet and fuzzy visual perception

作　　者：张帆[1] 

机构地区：[1]河北外国语职业学院,河北秦皇岛066000

出　　处：《中国西部科技》2009年第6期11-12,共2页Science and Technology of West China

摘　　要：为了进一步提高目前小波数字水印算法的抗干扰能力,本文提出了一种改进后的小波变换视觉感知模型,设计了一种基于高斯函数的方差和均值的模糊推理规则并将其引入到小波视觉感知模型中,通过上述方法改善了小波视觉感知模型数字水印的抗干扰性能,特别是明显改善了抗压缩攻击的性能。实验结果证明:该算法可进一步提高小波视觉感知数字水印的抗干扰性能,改善其鲁棒性。To further enhance the current wavelet digital watermarking algorithm anti-interference ability, a modified visual perception model of wavelet transform is proposed in this paper. Based on Gaussian function of the mean and variance, a fuzzy inference rule is designed and introduced to the wavelet visual perception model to improve the anti-disturb performance of watermarking of in the visual perception model of wavelet, In particular, there is a marked improvement on the performance of anti-compression attack By this method. Experimental results show that： the algorithm can increase the anti-disturb performance of wavelet visual perception model and improves its robustness.

关 键 词：数字水印 小波变换 模糊控制 视觉感知 信息安全 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP273.4[自动化与计算机技术—计算机科学与技术]