计算机工程与应用2011，Vol.47Issue(19)：170-172,3.DOI:10.3778/j.issn.1002-8331.2011.19.047
二维耦合映象格子混沌加密彩色图像水印
Color image watermarking of chaos encryption based on two-dimensional coupled map lattice
摘要
Abstract
This paper presents a color image watermarking algorithm based on two-dimensional coupled map lattice.lt uses two-dimensional coupled map lattice to generate the watermarking.An original image is divided into non-overlapped blocks, fractional box-counting dimension is used to analyze the feature of the image blocks to extract the feature blocks and secondary feature blocks and then one level DWT is used to decompose them.The different strength watermark is adaptively embedded into the low-frequency coefficients of the feature blocks,under the condition that the watermark embedded is invisible, and then is embedded into the secondary feature blocks in the same way.Experimental results demonstrate that the watermarking scheme is strongly robust to different types of attacks such as JPEG compression,noise addition,cropping,filtering and so on.关键词
数字水印/耦合映像格子/分数盒维数/彩色图像Key words
digital watermarking/ coupled map lattice {fractional box-counting dimension/ colour image分类
信息技术与安全科学引用本文复制引用
黄春杨,龚劬..二维耦合映象格子混沌加密彩色图像水印[J].计算机工程与应用,2011,47(19):170-172,3.
