| 基于小波系数差值直方图平移的可逆数据隐藏 |
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| 引用本文： | 熊志勇,王江晴. 基于小波系数差值直方图平移的可逆数据隐藏[J]. 光电子．激光, 2011, 0(8): 1220-1226 |
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| 作者姓名： | 熊志勇 王江晴 |
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| 作者单位： | 中南民族大学计算机科学学院；;中南民族大学计算机科学学院； |
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| 基金项目： | 国家自然科学基金资助项目(60975021);中南民族大学中央高校基本科研业务费专项资金资助项目(CZZ11003) |
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| 摘 要： | 针对传统差值直方图平移算法嵌入容量偏低、多重嵌入时图像质量严重下降等缺陷，提出一种基于整数小波系数差值直方图平移的彩色图像可逆数据隐藏算法。利用色彩分量间的相关性和小波系数间的关系减小差值，使差值直方图更加紧凑、峰值更大。采用双重嵌入方法提高嵌入容量，两次嵌入的像素值扩展方向相反，使得部分像素扩展量相互抵消，像素扩展量...
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| 关 键 词： | 可逆数据隐藏 差值直方图平移 整数小波系数 像素值可扩展性 色彩分量 |
Reversible data hiding based on wavelet coefficient difference histogram shifting |
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| XIONG Zhi-yong and WANG Jiang-qing. Reversible data hiding based on wavelet coefficient difference histogram shifting[J]. Journal of Optoelectronics·laser, 2011, 0(8): 1220-1226 |
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| Authors: | XIONG Zhi-yong and WANG Jiang-qing |
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| Affiliation: | College of Computer Science,South-Central University for Nationalities,Wuhan 430074,China;College of Computer Science,South-Central University for Nationalities,Wuhan 430074,China |
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| Abstract: | To avoid the drawback of difference histogram shifting algorithm which has lower capacity and image quality in multi-embedding,a reversible data hiding algorithm for color images based on wavelet coefficient difference histogram shifting is proposed in this paper.This algorithm uses the correlation of color components and the relationship between wavelet coefficients to decrease difference.The histogram of difference is more compact,and the peak is larger.The embedding scheme makes use of dual-e.. |
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| Keywords: | reversible data hiding difference histogram shifting integer wavelet coefficient pixel value expandability color component |
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