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Reversible data hiding in encrypted color images using cross-channel correlations

journal contribution
posted on 2021-01-01, 00:00 authored by Ming Li, Hua Ren, Yong XiangYong Xiang, Yushu Zhang
In recent years, the increasing requirements in cloud storage and cloud computing have made it necessary to encrypt digital images for privacy protection. Meanwhile, many reversible data hiding (RDH) algorithms in the encrypted domain have been proposed. However, most of these algorithms are for gray-level images, and the intrinsic cross-channel correlations of color images cannot be utilized to improve the embedding capacity. In this paper, we propose a novel data hiding method for encrypted color images. In the encryption stage, the homomorphic property of encryption is achieved by basic modular addition. During the data hiding process, the cross-channel correlations between R, G and B channels are generated in encrypted domain, and data hiding is performed by the difference histogram shifting. Analysis and experiments demonstrate that the proposed method is secure and the RDH performance is superior.

History

Journal

Journal of Visual Communication and Image Representation

Volume

78

Article number

103166

Pagination

1 - 16

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

1047-3203

Language

eng

Publication classification

C1 Refereed article in a scholarly journal