| 基于LAB色彩空间的自适应数字水印算法 |
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| 引用本文： | 王忠,陈海清. 基于LAB色彩空间的自适应数字水印算法[J]. 信息安全与通信保密, 2006, 0(4): 70-72 |
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| 作者姓名： | 王忠 陈海清 |
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| 作者单位： | 1. 华中科技大学光电子工程系,武汉,430074;武汉化工学院计算机科学与工程学院,武汉,430073
2. 华中科技大学光电子工程系,武汉,430074 |
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| 摘 要： | 文章针对彩色图像提出了一种基于LAB色彩空间的自适应数字水印算法。算法将预处理置乱后的水印嵌入LAB色彩空间的亮度L分量,在嵌入过程中根据人类视觉对LAB空间色差的要求自适应地调整嵌入强度因子,以达到平衡水印图像的鲁棒性和不可见性。实验结果表明该算法对常用的图像处理,如压缩、低通滤波、加噪、剪切、旋转和缩放等攻击具有较好的鲁棒性和不可见性。
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| 关 键 词： | 数字水印 LAB色彩空间 自适应 鲁棒性 不可见性 |
| 修稿时间： | 2005-08-08 |
An Adaptive Digital Watermarking Algorithm Based on LAB Color Space |
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| Wang Zhong,Chen Haiqing. An Adaptive Digital Watermarking Algorithm Based on LAB Color Space[J]. China Information Security, 2006, 0(4): 70-72 |
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| Authors: | Wang Zhong Chen Haiqing |
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| Abstract: | In this paper, an adaptive digital watermarking algorithm based on LAB color space is proposed. The watermark, which is scrambled during post-processing, is embedded in the luminance component from LAB color space. This algorithm adjusts adaptively the strength factor according to human vision for the difference of color in LAB color space. The balance of the watermarked image between robustness and imperceptibility would be available. The experiment results show that the algorithm provides high robustness and imperceptibility against the original image process attacks such as JEPG compression, low-pass filtering, adding noise, cropping, rotating and zooming etc. |
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| Keywords: | digital watermark LAB color space adaptive robustness imperceptibility |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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