文献类型：会议论文

英文题名：An Adaptive Image Watermarking in Wavelet-Domain by Embedding Shift-Orthogonal Finite-Length Sequences

作者：Li, Shuhong[1];Zhang, Qiaorong[1]

第一作者：李淑红

通讯作者：Li, SH[1]

机构：[1]Henan Univ Finance & Econ, Sch Informat, Zhengzhou 450002, Peoples R China

第一机构：河南财经政法大学计算机与信息工程学院

通讯机构：[1]corresponding author), Henan Univ Finance & Econ, Sch Informat, Zhengzhou 450002, Peoples R China.|[1048412]河南财经政法大学计算机与信息工程学院;[10484]河南财经政法大学;

会议论文集：7th World Congress on Intelligent Control and Automation

会议日期：JUN 25-27, 2008

会议地点：Chongqing, PEOPLES R CHINA

语种：英文

外文关键词：image watermarking; wavelet transform; shift-orthogonal finite-length sequence(SOFLS)

摘要：As a solution of copyright protection of image, an image watermarking based on wavelet transform and shift-orthogonal finite-length(SOFL) sequences is proposed. SOFL sequence has the characteristics of shift-orthogonality and mean 0, variance 1. The security of SOFL sequence is higher than pseudo random sequence because of the parameters used to generate the sequence. Watermark embedding is based on the characteristics of the human visual system (HVS) in wavelet-domain. In the process of watermark detection the normalized correlation function is used. The experimental results show that the proposed watermarking scheme is perceptual invisible and robust against attacks such as JPEG compression, additive noise, filtering and cropping.