预测误差与中值扩展的可逆信息隐藏研究  

Reversible Information Hiding Based on Prediction Error and Median Expansion

作　　者：肖敏[1] 郭美[1] 朱卫平 XIAO Min;GUO Mei;ZHU Weiping(Department of Computer and Artificial Intelligence,Xiangnan University,Chenzhou,China,423000;Department of Network Information Center,Xiangnan University,Chenzhou,China,423000)

机构地区：[1]湘南学院计算机与人工智能学院,湖南郴州423000 [2]湘南学院网络信息中心,湖南郴州423000

出　　处：《福建电脑》2023年第6期69-72,共4页Journal of Fujian Computer

基　　金：湖南省教育厅科学研究一般项目《基于云服务的可逆信息隐藏技术研究》(No.21C0732);中国高校产学研创新基金-新一代信息技术创新项目(No.2020ITA07038)资助。

摘　　要：可逆信息隐藏技术可为云服务、医学、司法等特殊场合的安全应用提供保证,该技术不仅能实现对机密的信息的隐藏,而且能完整地恢复出原始载体。本文针对图像的可逆信息隐藏技术,提出了预测误差与中值扩展的可逆信息隐藏算法。该算法通过Z字窗口预测误差,通过预测误差直方图的峰值点与中值点进行秘密信息嵌入。实验结果表明,该算法的性能评价指标隐藏容量大、透明性较好,鲁棒性强。Reversible information hiding technology can provide security guarantees for special applications such as cloud services,medicine,and justice.This technology not only enables the hiding of confidential information,but also fully restores the original carrier.This paper proposes a reversible information hiding algorithm based on prediction error and median expansion for image reversible information hiding technology.The algorithm predicts the error through the Z-window,and embeds the secret information through the peak and median points of the prediction error histogram.The experimental results show that the performance evaluation index of the algorithm has large hiding capacity,good transparency and strong robustness.

关 键 词：网络安全 云服务 可逆信息隐藏 预测误差 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]