A Novel Robust Digital Image Watermarking Algorithm based on Two Level DCT | |
Hu Guan; Zhi Zeng; Jie Liu; Shuwu Zhang | |
2014 | |
会议名称 | International Conference on Information Science, Electronics and Electrical Engineering |
会议录名称 | 2014 International Conference on Information Science, Electronics and Electrical Engineering |
会议日期 | 2014.4.26-2014.4.28 |
会议地点 | Hokkaido,Japan |
摘要 | In this paper, we propose a novel blind digital image watermarking algorithm which is resilient to many kinds of image processing attacks and geometric distortions. To embed the watermark, we first map the original watermark to another spread one aiming to fit for the image size and then embed it into the image two-level DCT coefficients we selected using a specified rule. We extract the watermark using two-level DCT accordingly with the help of the correlation scheme. Comparing with other achievements, our proposed schemes, including spread spectrum watermark generation, block-number-fixed image segmentation, two-level DCT and the feature vector extraction rule, play an important role in improving the watermark robustness. Experimental results demonstrate that our method can not only resist common image processing attacks, but also geometric distortions, such as scaling, aspect ratio changing, flip, rotation, and some kinds of combined transforms. |
关键词 | Digital Image Watermarking Discrete Cosine Transformation Invisibility Robustness |
文献类型 | 会议论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/15400 |
专题 | 数字内容技术与服务研究中心_版权智能与文化计算 |
通讯作者 | Hu Guan |
作者单位 | Institute of Automation, Chinese Academy of Sciences |
第一作者单位 | 中国科学院自动化研究所 |
通讯作者单位 | 中国科学院自动化研究所 |
推荐引用方式 GB/T 7714 | Hu Guan,Zhi Zeng,Jie Liu,et al. A Novel Robust Digital Image Watermarking Algorithm based on Two Level DCT[C],2014. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A Novel Geometricall(209KB) | 会议论文 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论