PM1 steganography in JPEG images using genetic algorithm
PM1 steganography in JPEG images using genetic algorithm
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DOI：
10.1007/s00500-008-0327-7
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发表时间：
2008-10
期刊：
影响因子：
4.1
通讯作者：
Lifang Yu;Yao Zhao;R. Ni;Zhenfeng Zhu
中科院分区：
文献类型：
--
作者：
Lifang Yu;Yao Zhao;R. Ni;Zhenfeng Zhu
加减1（PM1）是对基于LSB的隐写技术的一种改进方法，它不仅能有效地抵御LSB隐写技术的攻击，而且具有很高的容量。但如何将其应用到JPEG图像中，目前还未见文献报道。本文提出了一种基于遗传算法的JPEG图像PM1隐写算法。详细讨论了隐写后直方图特征的理论分析，证明了PM1在JPEG图像中的应用保持了一阶统计特性。实验结果表明，该方法在容量和安全性方面优于其他方法。
Plus minus 1 (PM1) is an improved method to least significant bits (LSB)-based steganography techniques, which not only foils typical attacks against LSB-based techniques, but also provides high capacity. But how to apply it to JPEG images does not appear in literatures. In this paper, PM1 steganography in JPEG images using genetic algorithm (GA) is proposed, in which the GA is used to optimize the performance, such as minimizing blockiness. Theoretical analysis to the histogram characteristics after steganography is discussed in details, which proves that PM1 used in JPEG images preserves the first-order statistical properties. Experiments show that the proposed method outperforms the other methods in terms of capacity and security.