摘要
提出了一种基于纠错编码的DCT域数字水印算法,该算法在检测时不需要原始图像,实现了盲检。并且对水印图像进行了利用超混沌置乱处理,提高了安全性能和抗攻击能力。纠错编码的引入使水印抗攻击能力明显增强。实验结果表明该算法较好地保持了图像质量,并对一般的信号处理:剪切、JPEG压缩、噪声等有很好的鲁棒性。
In this paper,an algorithm of digital image watermark based on DCT and error correcting coding is introduced,and the original image is not required for detecting the watermark.And the watermark is scrambled by supper-chaotic sequences to improve the capability of resisting attack and security.Experimental results show that the proposed algorithm keeps the quality of the image well and is robust against common image processing,such as cutting,JPEG compression,and noise.
出处
《信息技术》
2009年第12期121-122,163,共3页
Information Technology
关键词
纠错编码
小波变换
图像置乱
混沌
error correcting coding
wavelet transform
image scrambling
chaos
作者简介
姚涛（1981-），男，硕士研究生，助教，研究方向为信息传输与处理。
