基于均匀多通道子带变换的图像水印算法

北京邮电大学学报

基于均匀多通道子带变换的图像水印算法

北京邮电大学电信工程学院 , 北京 100876

基金资助:

An Image Watermarking Algorithm Based on Uniform Multi-channel Subband Transform

Telecommunication Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China

Supported by:

摘要/Abstract

摘要： 提出了一种基于多通道均匀滤波器组子带变换的水印嵌入方法 . 利用中低频带信号在变换处理中不易失和人眼不易察觉变化的性质 ,选择部分中低频带信号嵌入水印 ,实验表明该方法具有很好的不可见性和鲁棒性 .

关键词: 图像水印, 滤波器组 , 子带变换

Abstract: An image watermarking algorithm based on subband transform is proposed. With an uniform multi-channel filter bank an image is transformed as a set of subband parts every one of which have unique frequency character, and some lower-middle subband parts are chose to embed watermark. The experimental results show that the proposed watermarking algorithm results in an almost invisible difference between the watermarked image and the original image, and it is robust to noise and JPEG lossy compression.

Key words: watermarking, filter bank, subband transform

中图分类号:

TN911. 73

李学斌,　刘泽民 . 基于均匀多通道子带变换的图像水印算法[J]. 北京邮电大学学报.

LI Xue-bin,　 LIU Ze-min. An Image Watermarking Algorithm Based on Uniform Multi-channel Subband Transform [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM.

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