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Indexed by:期刊论文

Date of Publication:2012-06-01

Journal:SIGNAL PROCESSING

Included Journals:SCIE、EI、Scopus

Volume:92

Issue:6

Page Number:1525-1535

ISSN No.:0165-1684

Key Words:Data hiding; Exploiting modification direction; Steganography; Switch map

Abstract:In this paper, we proposed a novel adjustable data hiding method. Our proposed method, which is based on exploiting modification direction (EMD) method, is called the "multi-group exploiting modification direction" method. In the multi-group method, we combine several pixel-groups to embed secret data according to the constructed switch map to simply avoid the conversion redundancy of the EMD method and the spatial redundancy of the section-wise strategy, as well as to efficiently increase the probability of achieving larger embedding capacity. According to the experimental results and mathematical justification, we verified that the multi-group method can achieve higher embedding payload and better visual quality of the image than the EMD method and section-wise strategy for simulated and real secret data. (C) 2012 Elsevier B.V. All rights reserved.