一种不可见性和鲁棒性均衡的数字图像水印技术  

A Digital Image Watermarking Technology with Invisible and Robust

作　　者：曹海[1] 

机构地区：[1]四川理工学院计算机学院,四川自贡643000

出　　处：《微电子学与计算机》2015年第11期162-165,共4页Microelectronics & Computer

基　　金：四川省教育厅科研项目(10ZC084)

摘　　要：为了提高图像的安全性,保持图像的版权,提出一种不可见性和鲁棒性均衡的图像水印技术.首先对水印信息进行置乱操作,然后采用尺度不变特征变换算子构造载体图像的水印嵌入特征区域,并选择小波变换的中频子带小波系数作为嵌入位置,最后采用多幅图像进行水印嵌入测试.实验结果表明,此算法可以抵抗噪声、缩放等多种攻击,而且嵌入的水印具有较好的不可见性,较好地解决了当前图像水印技术中存在的不足,具有较高的实际应用价值.In order to improve the security of the printed image,and maintain the copyright of the printed image,this paper proposes a new image watermarking technique which is invisible and robust.First the watermark information of scrambling operation,then the scale invariant feature transform operators are constructed from the carrier image watermark embedding feature region,and select the wavelet transform of intermediate frequency sub band wavelet coefficient as the embedding position,finally the image watermark embedding test.Experimental results show that this algorithm can resist noise,scaling and other kinds of attacks and embedded watermark has good invisibility,a better solution to the existing problems in the current printing image watermarking technology,has a high practical value.

关 键 词：数字图像 小波系数 水印信息 原始载体图像 尺度不变特征变换 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]