摘要
该文提出了一种基于DCT变换域的数字水印算法，主要思想是利用密钥分散将原始二值水印图像经Amold置乱加密后嵌入到原始图像中，并通过Matlab实现了该算法。实验结果表明，该算法具有良好的不可感知性和鲁棒性，能有效抵抗裁剪、噪声等攻击。
In this paper,a DCT-based watermarking algorithm was proposed. The watermarking was embedded in the original image by Arnold scrambling encryption,we realize algorithm by Maflab.After experiment,the results show that algorithm have a good perception and robustness,it can stick up to the attack just as cut,noise and so on.
作者
黄武辉
刘海英
齐影虹
HUANG Wu-hui, LIU Hai-ying, QI Ying-hong （Nanchang University Computer Center, Nanchang 330031, China）
出处
《电脑知识与技术》
2009年第4期2696-2698,共3页
Computer Knowledge and Technology
基金
江西省自然科学基金项目（2007GZS2156）
关键词
数字水印
DCT
图像置乱
鲁棒性
digital watermairking
DCT
image scramble
robustness
