摘要： 提出了一种稳健的有意义图像的水印算法,通过双正交小波变换,将有意义的水印信息全部嵌入到低频系数上,并给出了低频系数的选择策略以提高水印的安全性。实验结果证实了所提出的水印算法具有很好的不可见性,对JPEG有损压缩、噪声、剪切等攻击具有良好的稳健性。

关键词: 有意义图像水印, 稳健性, 小波变换

Abstract: A robust watermarking algorithm for meaningful image watermarks is proposed in this paper. The algorithm embeds the information of the meaningful image watermark in the lowest frequency coefficients via biorthogonal wavelet transform. In order to enhance the security of the image watermarking, a choice strategy of the lowest frequency coefficients is also presented. The experimental results demonstrate that the watermarks generated with the proposed algorithm are invisible and robust against JPEG lossy compression and noise and cut processing.

中图分类号: 

• TP391.41