一种基于视觉感知模型的小波域图像盲水印方案  

A blind watermarking scheme based on visual perceptual model in wavelet domain

作　　者：黄滨[1] 

机构地区：[1]哈尔滨工程大学自动化学院 黑龙江哈尔滨150001

出　　处：《实验技术与管理》2008年第2期48-50,65,共4页Experimental Technology and Management

摘　　要：提出了一种基于视觉感知模型的小波域图像盲水印方案。该水印方案充分利用了人类的视觉感知特性,根据人眼对图像不同局部特征敏感程度的不同,自适应地调节水印的嵌入强度。水印的嵌入强度由图像的视觉临界差异决定,水印的提取不需要载体图像。仿真实验表明,该水印方案具有很强的抗攻击能力,并且水印的嵌入不影响图像的视觉质量。This paper presents a blind watermarking scheme based on the visual perceptual model in wavelet domain. In this scheme, the human visual perceptual properties are fully utilized, and the watermarking strength is adjusted according to the different sensitivity of human eyes to different local characters of the image. The embedding strength is decided by the just noticeable difference of the image, and the cover image is not needed during the extraction of watermark. The simulations have shown that the watermarking scheme is very robust and the watermarking doesn＇t degrade the visual quality of the cover image.

关 键 词：图像水印 视觉感知模型 离散小波变换 视觉临界差异 

分 类 号：TN918.91[电子电信—通信与信息系统]