基于SVD特性的数字水印算法研究

Study on Digital Watermarking Algorithm Based on SVD

介绍了矩阵奇异值分解(SVD)的基本原理,重点研究了SVD的转置特性、聚能特性、翻转特性和相对稳定性,这些特性恰好满足数字水印技术的需求。最后,结合现有SVD的水印算法,提出了一种较为安全的嵌入和提取方案。

This paper introduces the fundamental principle of matrix singular value decomposition (SVD),and analyses the transpose property,flip property,concentrated power property,and stability property of the SVD.These characteristics meet the requirements of the digital watermarking technology exactly.Finally,with the combination of the present watermarking algorithm based on SVD,a relatively safe embedding and extracting scheme is proposed.