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A novel reversible data hiding scheme with two-dimensional histogram shifting mechanism

journal contribution
posted on 2023-10-24, 05:06 authored by P H Vo, T S Nguyen, V T Huynh, T N Do
In this paper, we propose a novel reversible data hiding technique based on two-dimensional histogram shifting for quantized discrete cosine transformation coefficients (QDCT). In the proposed scheme, a two-dimensional histogram is constructed by QDCT coefficients blocks with the size of 8 × 8 of the left image and the right image. Once most of the QDCT coefficients are located at the top-right corner of the two-dimensional histogram, the QDCT coefficients are selected for embedding data to achieve high embedding capacity. In the embedding procedure, the three main steps, i.e., expanding, shifting, and embedding, are only used for QDCT coefficients in this corner not only to gain embedding capacity, but also to maintain good visual quality of stego images. The experimental results demonstrated that the proposed scheme is superior to the previous schemes in terms of embedding capacity and image quality.

History

Journal

Multimedia tools and applications

Volume

77

Pagination

28777 - 28797

Location

Dordrecht, The Netherlands

ISSN

1380-7501

eISSN

1573-7721

Language

eng

Publication classification

C Journal article; C1.1 Refereed article in a scholarly journal

Copyright notice

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