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Abstract
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Article Information:
Improving Security of Audio Watermarking in Image using Selector Keys
Amir Reza Fazli, Mohammad Eghbali Asli and Hamid Alinejad-Rokny
Corresponding Author: Amir Reza Fazli
Submitted: January 03, 2012
Accepted: March 10, 2012
Published: June 01, 2012 |
Abstract:
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This study presents a novel watermarking algorithm for improving the security and robustness of
hiding audio data in an image. Multi resolution discrete wavelet transform is used for embedding the audio
watermark in an image. In this context, security is quantified from an information theoretic point of view by
means of the equivocation and information leakage of the secret parameters. The selector keys are used as a
criterion to determine the location of appropriate wavelet blocks and wavelet coefficients for embedding the
watermark. Also, simulations assess the security levels derived in the theoretical part of the paper. The
experimental results demonstrate that using the selector keys enhance the security level of the watermark
embedding for a variety of scenarios. The level of the algorithm robustness is shown by considering Normalized
Correlation (NC) between the original audio watermark and extracted watermark.
Key words: Entropy, equivocation, information leakage, selector keys, wavelet transform, ,
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Cite this Reference:
Amir Reza Fazli, Mohammad Eghbali Asli and Hamid Alinejad-Rokny, . Improving Security of Audio Watermarking in Image using Selector Keys. Research Journal of Applied Sciences, Engineering and Technology, (11): 1545-1549.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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