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,并选取了离散余弦变换(DCT)算法在MATLAB环境下实现了数字水印的嵌入和提取。
With the development of network technology and digitol 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 selects the discrete cosine transform （DCT） algorithm to digital watermarking embedding and the extraction in the MATLAB environment.
出处
《网络与信息》
2010年第8期37-37,共1页
Network & Information
关键词
水印
DCT算法
MATLAB
仿真
Digital watermarking
DCT algorithm
MATLAB
Simulation
