基于小波提升的数字图像水印算法及其MATLAB实现

A Image Digital Watermarking Algorithm Based on The Wavelet Lifting and Its Simulation by MATLAB

数字水印技术作为数字媒体版权保护的有效办法,涉及到多个学科,迫切需要一种强大的研究工具。MATLAB以其自身具有的优势,正好可以成为研究数字水印的一种有效工具。文章介绍了数字水印技术实现的一般概念,提出了一种基于小波提升的图像数字水印算法.通过MATLAB仿真结果表明,利用该算法具有处理速度快,嵌入的水印信息量大、不可见性好等优点。

As an effective method on copyright protection of digital media,Watermarking technology referrs to many subjects ,thus needing a strong research tool. MATLAB has a lot of advantages itself, and is qualif ied for watermarking research.. This paper introduces the common concept through which digital watermarking is implemented and proposes a image digital watermarking algorithm based on the wavelet lifting. Simulation results show that the scheme can handle it quikly and embedded watermarking has the characteristics of abundant information and better invisibility.