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Indexed by:期刊论文

Date of Publication:2013-03-01

Journal:DIGITAL SIGNAL PROCESSING

Included Journals:SCIE、EI、Scopus

Volume:23

Issue:2

Page Number:569-577

ISSN No.:1051-2004

Key Words:Reversible data hiding; Histogram modification; Interpolation error; Direction order; Steganography

Abstract:Reversible data hiding can restore the original image from the stego image without any distortion after the embedded secret message is exactly extracted. In this paper, a novel, reversible, data hiding scheme for high quality images is proposed in spatial domain. To increase embedding capacity and enhance image quality, the proposed scheme classifies all pixels as wall pixels and non-wall pixels. For wall pixel, the interpolation error is used to embed secret data over the interpolation prediction method. In contrast, the difference value between the non-wall pixel and its parent pixel, which is defined by the direction order, is computed to hide secret data based on the histogram shifting. The experimental results demonstrate that our scheme provides a larger payload and a better image quality than some existing schemes. Moreover, the performance of the proposed scheme is more stable for different images. (C) 2012 Published by Elsevier Inc.