%0 Journal Article
%T Color image degradation algorithms based on Z-matrix map and selective encryption<br>基于Z矩阵映射和选择加密的彩色图像退化算法研究
%A Zhao Liang
%A Liao Xiao-Feng
%A Xiang Tao
%A Xiao Di
%A <br>赵亮
%A 廖晓峰
%A 向涛
%A 肖迪
%J 物理学报
%D 2010
%I 
%X With the development of information technology and network, multimedia protection has become a major concern, in which images are the important research objects. Especially, the image degradation is one of basic fields. This paper introduces a three-dimensional Z-matrix map which can be used for encryption, and shows its satisfactory property. Then, two color image degradation algorithms based on different templates for selective encryption are proposed. Finally, the performance and security of them are analyzed. Simulation results indicate the reliability of these schemes.
%K Z-matrix
%K selective encryption
%K chaotic encryption
%K color image degradation<br>Z矩阵
%K 选择加密
%K 混沌加密
%K 彩色图像退化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=25CFDECFE75830AA5AE40217E1BDE5F7&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=38B194292C032A66&sid=5D9E227628843A85&eid=777A6C995272142B&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=21