论文标题
基于比特平面压缩的预测错误，可逆数据隐藏在加密图像中
Reversible Data Hiding in Encrypted Images Based on Bit-plane Compression of Prediction Error
论文作者
论文摘要
作为可以防止信息披露的技术，隐藏在加密图像（RDHEI）中的可逆数据在隐私保护和信息安全中起着重要作用。为了利用图像冗余并进一步改善嵌入性能，本文提出了一种基于比特平面压缩的高容量RDHEI方法。首先，计算整个预测误差并将其分为相同大小的块。然后，内容所有者通过块重新安排预测错误的比特平面，并用关节编码算法压缩到储存室。最后，将图像加密，并可以将信息嵌入到保留的房间中。在接收器侧，信息提取和图像恢复是分开执行的。实验结果表明，所提出的方法具有比最先进的RDHEI作品更高的嵌入能力。
As a technology that can prevent the information from being disclosed, the reversible data hiding in encrypted images (RDHEI) acts as an important role in privacy protection and information security. To make use of the image redundancy and further improve the embedding performance, a high-capacity RDHEI method based on bit-plane compression of prediction error is proposed in this paper. Firstly, the whole prediction error is calculated and divided into blocks of the same size. Then, the content owner rearranges the bit-plane of prediction error by block and compresses the bitstream with the joint encoding algorithm to reserve room. Finally, the image is encrypted and the information can be embedded into the reserved room. On the receiver side, the information extraction and the image recovery are performed separably. Experimental results show that the proposed method brings higher embedding capacity than state-of-the-art RDHEI works.
