基于分形编码的遥感图像数字水印技术研究  

Research and application of digital watermarking for remote sensing image based on fractal coding

作　　者：陈辉[1] 郭科[2] 陈聆[2] 

机构地区：[1]成都理工大学 信息管理学院 地球探测与信息技术教育部重点实验室,成都610059 [2]成都理工大学信息管理学院,成都610059

出　　处：《计算机应用研究》2007年第9期83-85,共3页Application Research of Computers

基　　金：教育部博士点基金(20040616005);四川省科技厅应用基础资助项目(05JY029-087-1)

摘　　要：将基于分形编码的水印算法应用于遥感图像的版权保护。该算法特点是提取水印时不需要原始图像信息,算法是盲的;以二值图像作为水印,水印信息量大;在嵌入操作前,对二值水印图像进行了Arnold置乱,提高了算法的鲁棒性。实验表明该算法具有较好的鲁棒性,为遥感图像的版权保护提供了有效算法。Digital watermarking algorithm on fractal coding was developed using the direct to copyright protection of remote sensing image, and was blind. The watermarking was binary image that contained a large number of information. The robustness of the algorithm could be improved because Arnold scrambling was applied to binary image before the watermarking embeds. It is proved by test that the algorithm with good robustness can provide a effective method for the copyright protection of remote sensing images.

关 键 词：遥感图像 数字水印 分形编码 ARNOLD置乱 版权保护 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]