基于小波变换的图象认证的数字水印技术

Digital Watermarking Techniques for Image Authentication Based on Wavelet Transform

目前,基于小波变换的图像认证的数字水印技术已成为信息领域的研究热点。本文较全面地介绍了基于小波变换的图像认证数字水印技术的发展现状,给出了小波变换水印系统的基本结构、性能要求以及各种算法,并对算法进行了分析,总结了其优缺点。

At present, watermarking technology by using authentication of digital images based on wavelet transform has been a hotspot. This paper introduces its development, presents its general framework, fundamental demands and various existing algorithms, and analyzes these algorithms for their advantages and disadvantages.