基于DCT的数字水印研究与实现

Research and Implementation of Digital Watermarking Based on DCT

数字水印技术是解决版权保护问题的有效技术手段。该文分析了基于离散余弦变换的数字水印算法,并采用MATLAB实现了该算法的水印嵌入、提取和攻击实验,仿真结果表明该算法具有较好的鲁棒性和不可见性。

The digital watermarking technique is an important means to solve the problem of copyright protection effectively.This paper analyzed digital watermarking algorithm based on discrete cosine transform,and realized watermark embedding and extracting and attack of the algorithm by using MATLAB.The simulation results show that the algorithm has good robustness and visibility.