基于视觉掩蔽特性的可见水印的设计与实现  

Design and Implementation of Visible Watermarking Based on Vision Masking

作　　者：杨善超[1] 龚声蓉[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215000

出　　处：《计算机工程与应用》2006年第31期164-167,共4页Computer Engineering and Applications

基　　金：铁道部"铁路信息科学与工程"开放实验室基金资助项目(TDXX0501);江苏省自然科学基金资助项目(BK2003029);苏州大学挑战杯基金资助项目(053)

摘　　要：根据可见水印性质和载体图像的噪声掩蔽性在小波域进行可见水印算法的研究。提出了一种根据载体图像视觉掩蔽性进行水印嵌入强度的方案。在此基础上又结合水印图像的纹理特性对于高频系数水印嵌入强度进行重新调制。另外还对水印可见性质量评估进行了探讨。实验表明,改进后的算法水印可见性质量更好。In this paper,a visible watermarking algorithm is carried out in DWT domain based on mask effect to noises of original image.A watermarking intensity adaption scheme is proposed based on vision masking of initial image. On the basis of this,watermarking intensity is re-adjusted in watermarking high frequency coefficients according to texture characteristic of watermark image.Moreover watermark visibility is discussed.Experimental results show that the algorithm designed in the paper has very good watermark visibility,and the improvement that we made is effective.

关 键 词：可见水印 小波变换 图像内容 视觉掩蔽特性 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]