摘要
针对遥感影像数据,提出了一种基于影像重定位和遍历检测的盲水印算法。实验结果表明,该方法可以有效抵抗压缩、滤波等常见的图像处理攻击,还能有效抵抗裁剪攻击。
A blind watermarking algorithm based on image relocation and traversal detection for remote sensing image was presented.In the watermark embedding processing,the image was segmented by block and the low frequency of DCT was got.Then,the watermark was embedded in the low frequencies based on the quantitive method.Lastly,the inverse DCT was done,and the watermarked image was obtained.In the watermark detecting processing,the location of image was determined by the image expansion.The correct watermark information was got by the inverse process of the watermark embedding.Experimental results show that the method can effectively resist compression,filtering and other common image processing attacks,but also effective against cutting attacks.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2012年第10期1229-1231,共3页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41071245)
关键词
遥感影像
水印
重定位
遍历检测
remote sensing image
watermark
relocation
traversal detection
