%0 Journal Article
%T Spread spectrum watermarking algorithm based on compound chaotic sequence<br>一种基于复合混沌序列的扩频水印算法
%A RONG Xing
%A GAO Cheng-shi
%A DAI Qing
%A ZHANG Tao
%A <br>荣星
%A 高承实
%A 戴青
%A 张涛
%J 计算机应用研究
%D 2010
%I 
%X This paper put forward a robust spread spectrum algorithm with high safety in DWT(discrete wavelet transform)domain.Permuted watermark by Arnold transformation,then encrypted and spread based on compound chaotic binary sequence.And presented a method of fixing quantization step adaptively in DWT domain.Embedded binary watermark bits in frequency domain through odd-even quantization.The use of compound chaotic keys and privacy of modification on coefficients of DWT domain enhanced the security of watermarkin...
%K blind watermark
%K chaos
%K DWT
%K quantization<br>盲水印
%K 混沌
%K DWT
%K 量化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=81FD8F083D4D187ADCE51ED34B46F995&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=0B39A22176CE99FB&sid=F20A770D14436F7C&eid=C19D5524C51D7FE4&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=1&reference_num=10