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Dual imaging-based reversible hiding technique using LSB matching

机译：使用LSB匹配的基于双重成像的可逆隐藏技术

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摘要

Dual imaging technique is being used often in the reversible data hiding method recently. It creates two copies of the original image for embedding a message, to achieve a high hiding capacity. Image quality and hiding capacity in the dual imaging method are affected by embedding (or pixel modification) rules. Hence, the hiding rules play a pivotal role in similar techniques. In recent years, the dual imaging technique has focused on extended application in the modulo function hiding method. It uses a modulo function to establish rule tables, and refers to mapped values as camouflage pixel values. This study proposes an alternative approach. It is based on the least-significant-bit matching (LSB-matching) method for embedding using the dual imaging technique. It employs seven rules to camouflage pixel modifications. According to experimental results, we found that the method proposed in this study could maintain a rather high camouflage image quality with a high hiding capacity. The quality of the two camouflage images was also of an above average level. Besides, better image quality was also obtained from natural images with various characteristics.
机译：最近在可逆数据隐藏方法中经常使用双重成像技术。它创建原始图像的两个副本以嵌入消息，以实现较高的隐藏容量。双重成像方法中的图像质量和隐藏能力受嵌入（或像素修改）规则影响。因此，隐藏规则在类似技术中起着举足轻重的作用。近年来，双重成像技术已经集中在模函数隐藏方法中的扩展应用。它使用模函数来建立规则表，并将映射的值称为伪装像素值。这项研究提出了一种替代方法。它基于使用双重成像技术进行嵌入的最低有效位匹配（LSB-matching）方法。它采用七个规则来伪装像素修改。根据实验结果，我们发现该方法可以保持较高的伪装图像质量和较高的隐藏能力。两个伪装图像的质量也高于平均水平。此外，从具有各种特征的自然图像中也获得了更好的图像质量。

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