一种二代小波变换的图像水印方案

A scheme for watermark image of a second generation wavelet transformation

internet的日益普及以及多媒体信息交流的迅猛发展,为人类提供了极大的方便,然而信息安全问题也随之而来,对图像、音频、视频等多媒体内容的保护成为迫切需解决的问题。数字水印作为数字媒体版权保护的有效办法,倍受人们的青睐。根据一种整数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,给出一种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既能保持传统小波多分辨率图像水印的优势,又能处理速度更快。

The increasing use of internet and the unpredicted development of multi-media information communication provide the human kinds with great convenience.However,the problem of information security follows.The protection of the multi-media contents such as image,audio and video becomes the key issue.An effective way to protect the digital watermark is quite popular based on the features of the integral second generation wavelet transform.The article presents the scheme by using the traditional scheme of wavelet multi-resolution watermark image.The fulfillment of scheme is so simple.It needs so small capacity that the DSP is easily carried out.The result of simulation shows that the scheme can keep the advantage of traditional wavelet multi-resolution watermark and also can handle it quickly.