摘要
提出了一种基于修正Chirp-fourier变换的数字水印算法,该算法直接在空域中,嵌入Chirp信号作为水印信息,用修正Chirp-fourier变换对这一特定结构的水印信息进行盲检测。仿真结果表明,该算法透明性好、检测速度快,在对常见的图像处理过程中具有鲁棒性。
This paper proposes a new watermarking algorithm based on modified chirp-fourier transform. In this technique, chirp typed watermark is embedded in the spatial domain directly, and detected by modified Chirp-fourier transform. The experimental results show that this technique can make the watermarking perceptual invisibility and be detected quickly, and it is also robustness to some common image processing.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2006年第17期213-215,共3页
Computer Engineering
基金
国家自然科学基金资助项目(60472044)
