Robust RDH Technique Using Sorting and IPVO-Based Pairwise PEE for Secure Communication

摘要

Reversible data hiding (RDH) is used extensively in information-sensitive communication domains to protect the integrity of hidden data and the cover medium. However, most of the recently proposed RDH methods lack robustness. Robust RDH methods are required to protect the hidden data from security attacks at the time of communication between the sender and receiver. In this paper, the authors propose a robust RDH scheme using IPVO-based pairwise embedding. The proposed scheme is designed to prevent unintentional modifications caused to the secret data by JPEG compression. The cover image is decomposed into two planes, namely HSB plane and LSB plane. As JPEG compression most likely modifies the LSBs of the cover image during compression, it is best not to hide the secret data in LSB planes. So, the proposed method utilizes a pairwise embedding to embed secret data into the HSB plane of the cover image. High fidelity improved pixel value ordering (IPVO)-based pairwise embedding ensures that the embedding performance of the proposed method is improved.