As a technology that can prevent the information of original image and additional information from being disclosed, the reversible data hiding in encrypted images (RDHEI) has been widely concerned by researchers. How to further improve the performance of RDHEI methods has become a focus of research. To this end, this work proposes a high-capacity RDHEI method based on bit plane compression of prediction error. Firstly, to reserve the room for embedding information, the image owner rearranges and compresses the bit plane of prediction error. Next, the image after reserving room is encrypted with a serect key. Finally, the information hiding device embeds the additional information into the reserved room. This paper makes full use of the correlation between adjacent pixels. Experimental results show that this method can realize the real reversibility and provide higher embedding capacity than state-of-the-art works.
翻译：作为防止披露原始图像和额外信息的技术,加密图像中隐藏的可逆数据(RDHEI)受到研究人员的广泛关注。如何进一步改进 RDHEI 方法的性能已成为研究的焦点。为此,这项工作提出了基于比特平面压缩预测误差的高能力 RDHEI 方法。首先,为了保留信息嵌入空间,图像所有者重新排列和压缩预测误差的比位平方。接下来,保留室之后的图像用直方键加密。最后,信息隐藏设备将额外信息嵌入保留室。本文充分利用了相邻像素之间的关联性。实验结果显示,这种方法可以实现真实的可逆性,并且提供比最新工艺工程更高的嵌入能力。
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