摘要
本文提出了一种基于图像纹理特征的自适应水印算法.首先通过原加载水印图像与小波变换后的高频子带进行结合,重构出新水印序列,然后通过自适应阈值算法决定水印的嵌入和提取.经实验证明这种算法具有很好的不可见性,对常见的攻击具有较好的鲁棒性.
This paper presents an adaptive watermarking algorithm based on image texture features.Firstly,the watermark image is combined with the high frequency sub band after wavelet transform,reconstructing a new watermark.Then,the watermark embedding and extraction are determined by the adaptive threshold algorithm.The experimental results show that the algorithm has good invisibility as well as good robustness against common attacks.
出处
《山东师范大学学报（自然科学版）》
CAS
2017年第1期61-65,共5页
Journal of Shandong Normal University(Natural Science)
基金
山东省教改基金资助项目(2015M157)
关键词
数字水印
小波变换
自适应
图像处理
digital watermarking
wavelet transform
adaptive
image processing
