摘要
数字媒体版权保护已变得十分迫切和需要,有效的版权确认方法是实现有效版权保护的前提。本文结合Arnold置乱方法,提出了一种有效的数字图像水印方法。该算法通过将置乱后的数字水印嵌入到原始载体图像的L级小波逼近子图,取得了不错的结果。实验证明,该方法嵌入的数字水印不但具有较好的不可见性,而且对图像噪声、滤波等攻击具有较好的鲁棒性。
The copyright protection of the digital multimedia had become an impending issue. The effective pirate validation of the digital multimedia is the precondition for effective copyright protection. The paper proposed an effective digital image watermarking algorithm based on the Arnold encryption method. By embedding the watermarking to the low frequency coefficients of the L deep wavelet domain,we got good results. The experimental results demonstrate that the embedded watermarking is invisible and has good robustness against the attacks such as noise addition,filtering and so on.
出处
《信息技术与信息化》
2006年第6期75-76,79,共3页
Information Technology and Informatization
关键词
数字水印
图像加密
离散小波变换
Digital watermarking Image permutation Discrete wavelet transform
