基于Zernike矩的半脆弱水印算法  

A Semi-fragileim Watermarking Algorithm Based on Zernike Moments

作　　者：孙俊[1] 吴银胜[1] 宋峰[1] 吕承民[1] 

机构地区：[1]西安通信学院,西安710106

出　　处：《舰船电子工程》2009年第1期140-142,共3页Ship Electronic Engineering

摘　　要：随着图像技术的快速发展,当信息内容涉及到政治、军事、商业、法庭举证等重要数据时,其真实性和完整性必须得以确认。提出一种结合Zernike矩的半脆弱水印算法,利用图像小波变换低频子带的Zernike矩幅值的半脆弱特性区分恶意攻击和偶然攻击,提高了水印的安全性,并能准确地定位出篡改区域。With the rapid development of the image techniques, If the image contains important data, such as politics, military, commerce and evidence, the authenticity and integrality of the image must be validated. In this paper, a semi-fragileim watermarking algorithm using Zernike moments is proposed, it can distinguish malicious modification from incidental modification according to semi-fragile characteristics of zernike transform domain of an image, improving watermark security, moments of the low frequency subband in the integer wavelet and locating the tamper areas well and truly.

关 键 词：ZERNIKE矩 半脆弱水印 图像认证 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]