A Secure Semi-Fragile Self-Recoverable Watermarking Algorithm using Group-based Wavelet Quantization
文献类型：会议论文
| 作者 | Chunlei Li; Bin Ma; Yunhong Wang; Di Huang; Zhaoxiang Zhang
|
| 出版日期 | 2012-12-04 |
| 会议日期 | 4-6 December 2012 |
| 会议地点 | Singapore, Singapore |
| 关键词 | Semi-fragile Self-recoverable Tamper Detection Incidental Manipulation |
| 英文摘要 | In this paper, we propose a secure semi-fragile self-recoverable watermarking algorithm using group-based wavelet quantization. The image is split into image blocks with size 16×16. A 5-bit authentication watermark is generated from the first-order statical moments of each image block, and embedded into the mid-frequency bands of another image block by our proposed group-based wavelet quantization method. Security is enhanced by randomly permutating coefficients among a group. Robustness is improved by embedding watermark in largest coefficient inside a sub-group based on significant difference parity quantization (SDPQ) method. Moreover, all adjacent blocks of the test block and its mapping block are taken into account to improve localization accuracy. Experimental comparisons with existing techniques highlight the effectiveness of the proposed watermarking approach. |
| 会议录 | PCM 2012
 |
| 源URL | [http://ir.ia.ac.cn/handle/173211/13260]  |
| 专题 | 自动化研究所_智能感知与计算研究中心 |
| 通讯作者 | Zhaoxiang Zhang |
| 推荐引用方式 GB/T 7714 | Chunlei Li,Bin Ma,Yunhong Wang,et al. A Secure Semi-Fragile Self-Recoverable Watermarking Algorithm using Group-based Wavelet Quantization[C]. 见:. Singapore, Singapore. 4-6 December 2012. |
入库方式： OAI收割
来源：自动化研究所
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