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A New Scalar Quantization Method for Digital Image Watermarking
Joint Authors
Zolotavkin, Yevhen
Juhola, Martti
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-24
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Information Technology and Computer Science
Abstract EN
A new technique utilizing Scalar Quantization is designed in this paper in order to be used for Digital Image Watermarking (DIW).
Efficiency of the technique is measured in terms of distortions of the original image and robustness under different kinds of attacks, with particular focus on Additive White Gaussian Noise (AWGN) and Gain Attack (GA).
The proposed technique performance is affirmed by comparing with state-of-the-art methods including Quantization Index Modulation (QIM), Distortion Compensated QIM (DC-QIM), and Rational Dither Modulation (RDM).
Considerable improvements demonstrated by the method are due to a new form of distribution of quantized samples and a procedure that recovers a watermark after GA.
In contrast to other known quantization methods, the detailed method here stipulates asymmetric distribution of quantized samples.
This creates a distinctive feature and is expressed numerically by one of the proposed criteria.
In addition, several realizations of quantization are considered and explained using a concept of Initial Data Loss (IDL) which helps to reduce watermarking distortions.
The procedure for GA recovery exploits one of the two criteria of asymmetry.
The accomplishments of the procedure are due to its simplicity, computational lightness, and sufficient precision of estimation of unknown gain factor.
American Psychological Association (APA)
Zolotavkin, Yevhen& Juhola, Martti. 2016. A New Scalar Quantization Method for Digital Image Watermarking. Journal of Electrical and Computer Engineering،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1108493
Modern Language Association (MLA)
Zolotavkin, Yevhen& Juhola, Martti. A New Scalar Quantization Method for Digital Image Watermarking. Journal of Electrical and Computer Engineering No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1108493
American Medical Association (AMA)
Zolotavkin, Yevhen& Juhola, Martti. A New Scalar Quantization Method for Digital Image Watermarking. Journal of Electrical and Computer Engineering. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1108493
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1108493