PDF全文下载:2017050112
杨树国1, 梁家栋1, 张永林2
(1.青岛科技大学 数理学院,山东 青岛 266061;2.青岛职业技术学院 基础部,山东 青岛 266555)
摘要: 针对视频版权的保护,提出了一种基于改进的JND模型的视频水印算法。此算法首先选取二值图像作为图像水印,利用Logistic混沌映射对图像进行加密;然后对载体视频进行关键帧提取,将提取的帧进行4层小波分解,结合分形理论对小波系数进行D树和R树的存储,并根据人类视觉系统(HVS)提出改进的JND模型,进而将处理后的水印信息按照三个方向自适应的嵌入到D树和R树中。实验结果表明:本工作的算法具有较好的不可见性,且针对噪声、高斯滤波、旋转等攻击具有良好的鲁棒性。
关键词: JND模型; 人类视觉系统; 小波变换; 视频水印算法
中图分类号: TP 391文献标志码: A
引用格式:杨树国, 梁家栋, 张永林. 基于改进的JND模型的视频水印算法\[J\]. 青岛科技大学学报(自然科学版), 2017, 38(5): 112-118.
YANG Shuguo, LIANG Jiadong, ZHANG Yonglin. Video watermarking algorithm based on an improved JND model\[J\]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2017, 38(5): 112-118.
Video Watermarking Algorithm Based on an Improved JND Model
YANG Shuguo1, LIANG Jiadong1, ZHANG Yonglin2
(1.College of Mathematics and Physics, Qingdao University of Science and Technology, Qingdao 266061, China;2.Department of Basic, Qingdao Technology College, Qingdao 266555, China)
Abstract: For the protection of video copyright,this paper proposed a video algorithm based on an improved JND model.This algorithm firstly selects two-binary image as the watermark image,encoding the image by the logistic chaotic mapping;then extracting the key frame from the carrier video and decomposing the frame by four-layer wavlet,divide the wavlet coefficents and store them in the D-tree and the R-tree combined with the fractal theory,we proposed an improved JND model based on HVS and embedding the processed watermark information into the D-tree and the R-tree adaptively according to three directions. The experimental results show that this algorithm has a good invisibility, and the attack on Sharpening, Gauss filtering, noise, frame shear has good robustness.
Key words: JND model; HVS; DWT; video watermarking algorithm
收稿日期: 2016-12-06
基金项目: 山东省重点研发计划项目(2015GGX101020);2016年青岛科技大学大学生创新创业训练计划项目(201606001);青岛市科技发展计划项目(KJZD-13-27-JCH).
作者简介: 杨树国(1970—),男,教授.
文章编号: 1672-6987(2017)05-0112-07; DOI: 10.16351/j.1672-6987.2017.05.021