网络与信息安全学报2017，Vol.3Issue(12)：40-47,8.DOI:10.11959/j.issn.2096-109x.2017.00219
图像四叉树剖分下的自适应数字水印算法
Adaptive digital watermarking algorithm under image quad-tree partition
摘要
Abstract
An adaptive digital watermarking algorithm based on image quad-tree partition was proposed. The original image was approximated by various least square polynomial patches at multiple scales and was organized by a quad-tree structure. At the same time, this representation also reflected the texture information of image. By calculating the watermark embedding intensity in different regions, an adaptive digital watermarking scheme based on the number of the refined meshes in each region was realized. The experiment results show that this algorithm has the good imperceptibility and robustness.关键词
图像剖分/四叉树/最小二乘/水印Key words
image partition/quad-tree/least square/watermarking分类
信息技术与安全科学引用本文复制引用
刘文星,陈伟,刘渊..图像四叉树剖分下的自适应数字水印算法[J].网络与信息安全学报,2017,3(12):40-47,8.基金项目
国家自然科学基金资助项目(No.61602213) （No.61602213）
国家科技支撑计划基金资助项目(No.2015BAH54F00) （No.2015BAH54F00）
The National Natural Science Foundation of China (No.61602213), The National Science and Technology Support Program (No.2015BAH54F00) （No.61602213）
