Open Access Article

Title: Reversible data hiding algorithm in encrypted images using adaptive total variation and cross-cyclic shift

Authors: Mingfang Jiang

Addresses: School of Computer Science, Hunan First Normal University, Changsha, 410205, China

Abstract: To reduce prediction error and improve the embedding rate of secret messages, a new reversible data hiding algorithm for encrypted images (RDHEI) is designed using adaptive total variation and cross-cyclic shift called RDHEIAC. The adaptive total variation is first used to generate the prediction error image. Then, the bit-plane rearrangement based on Hilbert scanning is performed to make room for data hiding. Thirdly, an improved run-length encoding is applied to compress the error image. Subsequently, a cross-cyclic shift operation and a diffusion operation based on chaotic maps are used to produce encrypted images. Finally, secret messages are inserted into the encrypted image using bit substitution. Experimental results indicate that the proposed RDHEI scheme is privacy secure and has high embedding capacity and image fidelity. Moreover, information extraction and image restoration are separable. Compared with previous RDHEI algorithms, the proposed RDHEI algorithm has a 47.07% higher embedding rate.

Keywords: RDH; reversible data hiding; image encryption; adaptive total variation; run-length encoding; cross-cyclic shift; bit-plane rearrangement; Hilbert scanning; data hiding; bit substitution; Huffuman coding.

DOI: 10.1504/IJAACS.2023.134851

International Journal of Autonomous and Adaptive Communications Systems, 2023 Vol.16 No.6, pp.611 - 631

Received: 31 Aug 2023
Accepted: 23 Sep 2023

Published online: 14 Nov 2023 *