基于小波对比度的自适应图像水印算法

Adaptive digital watermarking algorithm based on wavelet contrast

提出一种基于小波对比度的小波域自适应水印算法,充分利用小波对比度更适合人类视觉特性的特点自适应地确定小波域上各分块的嵌入的强度和位置。理论分析和实验结果表明,该算法很好地解决了水印鲁棒性和不可见性之间的矛盾,对一般的图像处理和攻击有很好的鲁棒性。

A novel adaptive watermarking method block＇s embed position and intensity based on the based on wavelet contrast is proposed, It decides adaptively the every wavelet constrast which can more fit to Human Visual System（HVS）.Theoretical analysis and experiment results show that the algorithm solves the conflict of the watermark robustness and perceptual invisible.And it is robust against normal image processing and attacks.