Reversible data hiding using additive prediction-error expansion
Reversible data hiding using additive prediction-error expansion
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DOI：
10.1145/1597817.1597822
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发表时间：
2009-09
期刊：
影响因子：
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通讯作者：
Ming Chen;Zhenyong Chen;Xiao Zeng;Z. Xiong
中科院分区：
文献类型：
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作者：
Ming Chen;Zhenyong Chen;Xiao Zeng;Z. Xiong
可逆数据隐藏是一种通过可逆过程将秘密数据嵌入到覆盖介质中的技术。在本文中，我们提出了一种可逆数据隐藏方案，可以将大量秘密数据嵌入到图像中，并且进行不可察觉的修改。预测误差，即像素值与其预测值之间的差异，用于通过相加扩展或保持不变来嵌入位“1”或“0”。通过将像素变化限制为 1 并避免可能的像素上溢/下溢来保证低失真；高纯容量是通过采用有效的预测器来极大地利用像素相关性并避免像位置图这样的大开销来实现的。实验结果表明，与其他最先进的方案相比，所提出的方案提供了有竞争力的性能。
Reversible data hiding is a technique that embeds secret data into cover media through an invertible process. In this paper, we propose a reversible data hiding scheme that can embed a large amount of secret data into image with imperceptible modifications. The prediction-error, difference between pixel value and its predicted value, is used to embed a bit '1' or '0' by expanding it additively or leaving it unchanged. Low distortion is guaranteed by limiting pixel change to 1 and averting possible pixel over/underflow; high pure capacity is achieved by adopting effective predictors to greatly exploit pixel correlation and avoiding large overhead like location map. Experimental results demonstrate that the proposed scheme provides competitive performances compared with other state-of-the-art schemes.