文献类型：会议论文

英文题名：Zero-watermarking for Copyright Protection of Remote Sensing Image

作者：Jing, Li[1];Zhang, Yadong[1];Chen, Guangyu[1]

第一作者：景丽

通讯作者：Jing, L[1]

机构：[1]Henan Univ Finance & Econ, Coll 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, Coll 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：9th International Conference on Signal Processing

会议日期：OCT 26-29, 2008

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Discrete wavelet transforms - Image watermarking - Remote sensing - Signal processing - Watermarking

摘要：Watermarking technique is the main method for copyright protection. But this technique does not suit remote sensing image because the embedded watermark heavily affects the results of its applicative tasks. In order to protect remote sensing image, this paper proposes a robust zero-watermarking method that constructs watermarks from the host data instead of embedding watermark into that data. The proposed method constructs two watermarks from host image. One is constructed from low-frequency coefficients in discrete wavelet transform domain of the host image, and the other is constructed from that of the log-polar mapping image of the host image. Experiments show that this method is robust to both signal processes and geometrical distortions.