基于第二代小波变换的多分辨率图像水印方案

北京邮电大学学报 ›› 2002, Vol. 25 ›› Issue (3): 93-97.

基于第二代小波变换的多分辨率图像水印方案

袁超伟, 王桃荣

北京邮电大学继续教育学院, 北京 100876

收稿日期:2001-09-20 出版日期:2002-09-10
作者简介: 袁超伟(1961—),男,教授。
基金资助:

Image Watermarking Based on Second-Generation Wavelet Transform

YUAN Chao-wei, WANG Tao-rong

Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2001-09-20 Online:2002-09-10
Supported by:

摘要/Abstract

摘要： 根据第二代小波变换的特点,利用传统小波多分辨率图像水印方案,给出了基于第二代小波变换的多分辨率图像水印方案。该方案实现简单,对内存需求量小,便于DSP芯片实现。仿真结果表明,该方案不仅能保持传统小波多分辨率图像水印的优势,而且处理速度更快,对图像尺寸没有特殊要求。

关键词: 图像水印, 第二代小波变换, 小波提升, 多分辨率

Abstract: We combines the advantages of second-generation wavelet transform and the traditional image watermarking method using wavelet multiresolution transform, proposing a scheme of images watermarking based on second-generation wavelet transform. The scheme has the advantage of simple implementation with a DSP; only a smaller memory is needed. The simulation result shows that our scheme keeps the advantage of the traditional one with a higher speed andno particular requiments for image size.

Key words: image watermarking, second-generation wavelet transform, wavelet lifting, multiresolution

中图分类号:

TN918

袁超伟, 王桃荣. 基于第二代小波变换的多分辨率图像水印方案[J]. 北京邮电大学学报, 2002, 25(3): 93-97.

YUAN Chao-wei, WANG Tao-rong. Image Watermarking Based on Second-Generation Wavelet Transform[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2002, 25(3): 93-97.

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