数字水印的高斯低通滤波鲁棒性测试  

Robustness testing of Digital Watermarking after Gauss Low-pass Filtering

作　　者：吴燕[1] 

机构地区：[1]陕西理工学院电信工程系,陕西汉中723003

出　　处：《网络与信息》2010年第8期42-42,共1页Network & Information

摘　　要：随着网络技术和数字技术的发展,数字水印在版权保护、数据鉴别、数字产品认证领域有着广泛的应用前景。本文介绍了数字水印的基本原理和实现数字水印嵌入和提取的DCT算法,并在matlab环境下,对高斯低通滤波后的图像实现了水印的提取,测试了它的鲁棒性。With the development of nework technology and digital technique, the watermarking has the applied prospect broadly in the fields such as copyright protection, data discriminating ,digital product attestation. The paper introduces digital water marking＇s basic theories and DCT algorithms that can realize watermarking embedding and extroction. In the MATLAB environment, we achieve digital watermark＇ s extraction after Gauss low-pass filtering, and test its robustness.

关 键 词：水印 DCT算法 MATLAB 高斯低通滤波 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]