| 抗亮度和对比度调整的盲鲁棒量化水印算法 |
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| 引用本文： | 叶天语.抗亮度和对比度调整的盲鲁棒量化水印算法[J].光子学报,2011(10):1577-1585. |
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| 作者姓名： | 叶天语 |
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| 作者单位： | 浙江工商大学信息与电子工程学院; |
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| 基金项目： | 浙江省教育厅项目(No.Y201017916)资助 |
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| 摘 要： | 针对现有许多图像水印算法无法抵抗亮度和对比度调整,提出了一种抗亮度和对比度调整的盲鲁棒量化水印算法.对原始图像进行离散小波变换,将低频子带分成互不重叠的子块,对每个子块进行离散余弦变换,在每个子块的离散余弦变换低频系数奇偶量化嵌入水印.检测端先对攻击 后的含水印图像进行抗亮度和对比度调整修正,然后通过奇偶判断盲提...
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| 关 键 词： | 数字水印 量化 鲁棒性 亮度和对比度调整 |
A Blind Robust Quantization-based Watermarking Algorithm Against Brightness-and-contrast Adjustment |
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| YE Tian-yu.A Blind Robust Quantization-based Watermarking Algorithm Against Brightness-and-contrast Adjustment[J].Acta Photonica Sinica,2011(10):1577-1585. |
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| Authors: | YE Tian-yu |
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| Institution: | YE Tian-yu (College of Information & Electronic Engineering,Zhejiang Gongshang University,Hangzhou 310018,China) |
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| Abstract: | Lots of existing image watermarking algorithm cannot resist brightness-and-contrast adjustment.In order to solve the problem,a blind robust quantization-based watermarking algorithm against brightness-and-contrast adjustment is proposed.An original image is transformed with discreet wavelet transform,and its low frequency band is split into non-overlapping blocks.Then,each block is conducted with discreet cosine transform.Finally,a watermark is inserted into low frequency coefficient from each block after d... |
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| Keywords: | Digital watermarking Quantization Robustness Brightness-and-contrast adjustment |
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