一种基于HVS的DWT数字水印算法研究  

On DWT Digital Watermarking Algorithm Based on HVS

作　　者：陆璐[1] 杨志献[1] 姜永亮[2] 

机构地区：[1]郑州铁路职业技术学院信息工程系,郑州450000 [2]海南师范大学网络中心,海口571158

出　　处：《西南师范大学学报（自然科学版）》2016年第11期165-169,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(71361008);海南省重点科技基金项目(ZDXM20130080)

摘　　要：版权保护和信息隐藏最重要的方法就是数字水印技术.该文提出了一种基于HVS的DWT数字水印算法,该算法充分利用人类视觉特性和离散小波变换特点把图像进行分解,并且将低频子带块按升序排列,能选出最优的嵌入水印系数对,这样就能很好地平衡鲁棒性和水印嵌入透明性.测试结果表明,此算法鲁棒性和透明性都很好,具有广阔的应用空间.Copyright protection and information hiding most important way is digital watermarking technol-ogy. In the article, a digital watermarking has been presented based on HVS DWT algorithm, which makes full use of human visual characteristics and the characteristics of discrete wavelet transform, the im-age decomposition, and by the low frequency sub-band block in ascending order, to select the optimal coef-ficients for watermark embedding. This allows a good balance watermark robustness and transparency. The results show that the algorithm transparency and robustness are very good, with a broad application space.

关 键 词：鲁棒性 数字水印 HVS DWT 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]