基于DCT域的数字盲水印技术  

Blind Watermarking Technology Based on DCT Domain

作　　者：范腾飞[1] 黄颖为[1] 闫雪艳[1] 冯汉禄[1] 

机构地区：[1]西安理工大学,西安710048

出　　处：《包装工程》2010年第5期103-105,131,共4页Packaging Engineering

摘　　要：提出一种鲁棒性较好的DCT域数字盲水印方案。该方案将汉明编码应用于二值水印图像,同时,采用混沌调制序列伪随机选取嵌入区域,提高水印算法的安全性。通过分析DCT中频特定系数关系,实现水印的盲提取。实验结果表明,该算法对于常见的图像攻击具有较好的鲁棒性,是一种有效的盲水印。A digital watermarking program of good robustness was presented. The Hamming code was applied to binary watermark image, and chaotic pseudo-random modulation sequence was embedded in selected areas to improve the security of watermarking algorithm. By analyzing the relationship between DCT coefficients of a specific intermediate frequency, the blind watermark extraction was achieved. The experimental results showed that the algorithm was an effective blind watermark which had good robustness against the common image attacks.

关 键 词：DCT 汉明编码 盲水印 

分 类 号：TS853.6[轻工技术与工程] TP309[自动化与计算机技术—计算机系统结构]