| 摘要: |
| 提出了一种鲁棒性好的数字图像水印算法.算法采用Hilbert扫描顺序,用考虑HVS(human visual system)特性的噪声阈值矩阵作为叠加水印信号的掩模插入水印,并具有水印强度自适应调节特性.水印检测算法还可加入自动校正模块,大大提高了判决的准确性.在描述算法的基础上,给出了实验结果及攻击分析.实验结果表明，该算法具有较强的透明性和鲁棒性,水印检测结果准确,并且算法的计处量小. |
| 关键词: 信息隐藏 数字水印 Hilbert扫描 人类视觉系统 攻击分析 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(60033010;60083009)；浙江省自然科学基金资助项目(RC00048) |
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| A Robust Image Watermarking Algorithm |
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YIN Kang kang,SHI Jiao ying,PAN Zhi geng
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| Abstract: |
| In this paper, a robust image watermarking algorithm is proposed, which adopts the Hilbert scanning, and uses JND (just noticeable distortion) matrix based on HVS (human visual system) characteristics to mask the watermarking signal when embeds the watermark. And the strength of the watermark can be self adapting. Auto Rectification can also be added, which greatly improves the accuracy of watermark detection. Based on the description of the algorithm, experimental results and attack analysis are given. The experimental results show that this algorthm is transparent and robust.The detection results are faithful and the computational cost is low. |
| Key words: steganography digital watermarking Hilbert scanning HVS （human visual system） attack analysis |
