基于HVS和小波变换的彩色图像水印算法  

Digital watermarking algorithm for color images based on HVS and DWT

作　　者：汤晓明[1] 王丽君[1] 

机构地区：[1]辽宁科技大学软件学院,辽宁鞍山114051

出　　处：《微型机与应用》2010年第10期49-52,共4页Microcomputer & Its Applications

摘　　要：提出了一种将彩色水印图像嵌入到原始彩色图像中的数字水印算法。该算法对水印的加密采取了Arnold结合矩阵变换的方法,并利用人类视觉系统特性,将水印信息嵌入到载体图像多级小波分解后的中低频奇数行奇数列系数中。实验结果表明,该算法在对嵌入水印后的图像进行剪切、不规则色块污染、添加各种噪声等处理后,提取的水印表现出良好的鲁棒性,且主观视觉失真较小。A digital watermark algorithm by embedding a color digital watermark into an original color image was discussed. The algorithm inserted the watermarks into the middle-low frequeny subbands in odd rows and columns after DWT according to HVS, The method was tested with attacks such as cropping, polluting and noise adding, obtaining results of good robustness and low visual distortion.

关 键 词：彩色数字水印 人类视觉系统 小波变换 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]