%0 Journal Article
%T Image Watermarking Scheme Based on 3-D SWT<br>基于3维提升可分离小波变换的图像水印方案
%A WANG Jin-wei
%A LIU Guang-jie
%A DAI Yue-wei
%A WANG Zhi-quan
%A <br>王金伟
%A 刘光杰
%A 戴跃伟
%A 王执铨
%J 中国图象图形学报
%D 2007
%I 
%X Robust watermarking techniques are always used for copyright protection and ownership assertion.Many watermark embedding schemes in transform domain are proposed such as 2-D DFT,2-D DCT and 2-D DWT which are used to transform the image data,and 3-D DCT and 3-D DWT which are used to transform the video data and 3-D image data.In this paper,a gray-level image watermarking scheme based on 3-D separable wavelet transform(SWT) with lifting scheme is presented.A gray-level image is decomposed into a 3-D image sequences by sub-sample of zigzag scan which are transformed using 3-D SWT.Simultaneously it is proved that the distribution of 3-D SWT coefficients follow the generalized Gaussian density function by using the distribution relative entropy theory.To make the compromise between the robustness and the imperceptivity,a new 3-D HVS model is reconstructed and used to adjust the embedding strength.In watermark detection,the optimum detector is used to implement the blind detection.It is shown in our experiments that the scheme is strongly robust against various attacks.
%K digital watermark
%K lifting wavelet
%K HVS
%K relative entropy
%K optimum detection<br>数字水印
%K 提升小波
%K 人类视觉模型
%K 相对熵
%K 最优检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=93475E8CAF798CFF&yid=A732AF04DDA03BB3&vid=59906B3B2830C2C5&iid=38B194292C032A66&sid=09AA1448D1EAF9C1&eid=A4E67967A1AB25F0&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=12