计算机工程与应用2011，Vol.47Issue(13)：216-218,3.DOI:10.3778/j.issn.1002-8331.2011.13.061
奇异值分解的可自恢复的图像篡改认证方案
Scheme tamper authentication and self recovery of images using SVD.
摘要
Abstract
A watermarking algorithm for self-embedding of an image is proposed. The image is divided into small blocks and each block is singular value decomposition. Then the quantization image is obtained by drawing the maximum SVs to be quantized from each block. The binary code of quantization image is scrambled and chaotically encrypted,then it is embedded into LSBs of original image,which are set to zero. The algorithm not only can detect and locate the tampering to image,but also recover the content of the tampered image.Experimental results demonstrate that the locating of tamper can be located accurately and the quality of recovery of damaged image's content is good.关键词
奇异值分解/数字水印/自嵌入Key words
Singular Value Decomposition(SVD)/digital watermarking/self-embedding分类
信息技术与安全科学引用本文复制引用
杨卫民,孟令梅,蔡键..奇异值分解的可自恢复的图像篡改认证方案[J].计算机工程与应用,2011,47(13):216-218,3.基金项目
湖南省教育厅项目(No.08B091) （No.08B091）
湖南省科技计划项目(No.2010TZ4012). （No.2010TZ4012）
