一种基于LSB的易碎性数字盲水印算法  

A Brittle Digital Blind Watermark Algorithm Based on LSB

作　　者：马刚[1] 蒋志新[1] 卫红春[1] 刘天时[1] 

机构地区：[1]西安石油大学计算机学院,陕西西安710065

出　　处：《微电子学与计算机》2008年第8期205-208,共4页Microelectronics & Computer

基　　金：西安石油大学科技创新基金项目(2006-46)

摘　　要：提出了一种基于LSB的易碎性数字盲水印算法.水印由m序列确定的嵌入像素LSB清零后的原始图像CRC-32值、有意义的二值图像及其CRC-32值组成,嵌入到由m序列确定的像素LSB中,有效地解决了信息隐藏、盲水印提取和篡改检测等关键问题.试验结果表明,该算法能够满足数字档案资料版权保护和篡改鉴真的要求,具有实用价值.A brittle digital blind watermark algorithm based on LSB is proposed. The watermark is made up of the CRC- 32 value of an original image in which LSB of some embedded pixels confirmed by m-sequence is reset to zero, a meaningful 2-bit image and its CRC-32 value. By embedding the watermark into LSB of these specific pixels, some pivotal issue such as information hiding, blind watermark extracting and tamper detecting are solved efficiently. The experimental result indicates that this algorithm can meet the demand of digital archives＇ copyright protection and tamper detecting, and it is practical.

关 键 词：数字水印 信息隐藏 CRC 篡改检测 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]