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High Capacity Reversible Watermarking for Audio by Histogram Shifting and Predicted Error Expansion
Joint Authors
Chen, Zuo
Xie, Zhaoxin
Wang, Fei
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-14
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Being reversible, the watermarking information embedded in audio signals can be extracted while the original audio data can achieve lossless recovery.
Currently, the few reversible audio watermarking algorithms are confronted with following problems: relatively low SNR (signal-to-noise) of embedded audio; a large amount of auxiliary embedded location information; and the absence of accurate capacity control capability.
In this paper, we present a novel reversible audio watermarking scheme based on improved prediction error expansion and histogram shifting.
First, we use differential evolution algorithm to optimize prediction coefficients and then apply prediction error expansion to output stego data.
Second, in order to reduce location map bits length, we introduced histogram shifting scheme.
Meanwhile, the prediction error modification threshold according to a given embedding capacity can be computed by our proposed scheme.
Experiments show that this algorithm improves the SNR of embedded audio signals and embedding capacity, drastically reduces location map bits length, and enhances capacity control capability.
American Psychological Association (APA)
Wang, Fei& Xie, Zhaoxin& Chen, Zuo. 2014. High Capacity Reversible Watermarking for Audio by Histogram Shifting and Predicted Error Expansion. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1050530
Modern Language Association (MLA)
Wang, Fei…[et al.]. High Capacity Reversible Watermarking for Audio by Histogram Shifting and Predicted Error Expansion. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1050530
American Medical Association (AMA)
Wang, Fei& Xie, Zhaoxin& Chen, Zuo. High Capacity Reversible Watermarking for Audio by Histogram Shifting and Predicted Error Expansion. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1050530
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050530