基于多层次插值预测和全局排序的彩色图像可逆信息隐藏  

Reversible color image data hiding based on multi-level interpolation prediction and global sorting

作　　者：任前龙 熊礼治 REN Qianlong;XIONG Lizhi(School of Computer Science/School of Cyber Science and Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Engineering Research Center of Digital Forensics Ministry of Education,Nanjing University of Information Science&Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学计算机学院、网络空间安全学院,南京210044 [2]南京信息工程大学数字取证教育部工程研究中心,南京210044

出　　处：《南京信息工程大学学报》2025年第2期191-202,共12页Journal of Nanjing University of Information Science & Technology

基　　金：国家自然科学基金(61702276)。

摘　　要：为了有效解决现有彩色图像可逆数据隐藏(Reversible Data Hiding,RDH)算法中隐写图像视觉质量低的问题,提出一种多层次插值预测和全局排序的彩色图像RDH方案.首先,为了充分利用图像中不同纹理区域的特征,设计一种多层次插值预测方法,显著地提升了像素的预测精度;然后,设计一种基于复杂度的全局排序策略,分别对彩色图像三个通道中的预测误差进行排序,充分利用每个通道中预测误差的全局特征,生成分布更加集中的三维预测误差直方图(Three-Dimensional Prediction Error Histogram,3D PEH);最后,利用自适应三维映射策略修改误差直方图,嵌入秘密数据.实验结果表明,与最新的一些方案相比,所提的方法实现了更好的嵌入性能.To address the low visual quality of stego-image in existing color image Reversible Data Hiding(RDH)algorithms,a novel RDH scheme utilizing multi-level interpolation prediction and global sorting is proposed.Firstly,to fully exploit the features of different texture regions in the image,a multi-level interpolation prediction method is designed to significantly improve the prediction accuracy of pixels.Then,a complexity-based global sorting strategy is designed to sort the prediction errors in the three channels of color images respectively,thereby fully utilizing the global characteristics of the prediction errors in each channel to generate a more concentrated Three-Dimensional Prediction Error Histogram(3D PEH).Finally,an adaptive 3D mapping strategy is used to modify the error histogram and embed secret data.Experimental results show that the proposed approach outperforms some of the latest schemes in embedding performance.

关 键 词：彩色图像 可逆信息隐藏 多层次插值预测 全局排序 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]