| 基于信号合成与分离方法的数字图像灰度水印算法 |
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| 引用本文： | 王朋飞,冯桂.基于信号合成与分离方法的数字图像灰度水印算法[J].电路与系统学报,2005,10(4):82-85,30. |
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| 作者姓名： | 王朋飞 冯桂 |
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| 作者单位： | 国立华侨大学信息学院,福建泉州362021 |
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| 基金项目： | 国家自然科学基金资助项目（60472106）;国立华侨大学科研基金资助项目（03BS202） |
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| 摘 要： | 根据图像DCT交流系数的统计特性，基于直流和交流信号的合成和分离方法，探索了一条频率域鲁棒水印的新思路。在载体DCT中频域中建立近似直流信号，把灰度水印图像置乱并调制成交流信号，水印的嵌入和检测过程转化为直流和交流信号的合成和分离过程。仿真分析表明，提出的算法具有嵌入水印信息量大、鲁棒性强和实现水印盲检测等优点。
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| 关 键 词： | 数字水印 信息隐藏 鲁棒性 灰度水印 盲水印 |
| 文章编号： | 1007-0249（2005）04-0082-04 |
| 收稿时间： | 2004-10-08 |
| 修稿时间： | 2005-01-22 |
Digital image watermarking scheme for gray-scale image embedding based on signal synthesis and separation |
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| Wang PengFei;Feng Gui.Digital image watermarking scheme for gray-scale image embedding based on signal synthesis and separation[J].Journal of Circuits and Systems,2005,10(4):82-85,30. |
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| Authors: | Wang PengFei;Feng Gui |
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| Abstract: | A novel digital watermarking scheme for gray-scale image embedding and extracting is proposed, which is based on synthesis and separation method of direct and alternating signal. Direct signal was founded in host image in DCT domain, and the modulated watermark is regarded as alternating signal, so watermark embedding and extracting are similar with direct and alternating signal synthesizing and separating. The only thing needed during extracting is the key. Experimental results show that embedded watermark has a certain capacity and robustness. |
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| Keywords: | digital watermarking information hiding robustness gray-scale watermark blind watermarking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
