Robustness Analysis of QIM Watermarking against Additional Noise

Abstract:

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A mutual information function was defined as a criterion measuring the robustness of watermarking algorithm. Considering QIM scheme, error probability of watermarking can be calculated to validate the measurement of mutual information function. By mean of numerical computation, mutual information under Gaussian noise and uniform noise is calculated with change of noise standard deviation. In the experiment, an audio section is selected as the host and their third lever wavelet detail coefficients are quantified according to watermark bit series. Experiment results show that statistic Bit Error Rate (BER) is matched with evaluation conclusion of mutual information method when step is on the small side. Mutual information function can be selected as a cost function to evaluate the robustness of watermarking algorithm, and predict the BER.

Info:

Periodical:

Advanced Materials Research (Volumes 225-226)

Edited by:

Helen Zhang, Gang Shen and David Jin

Pages:

601-604

DOI:

10.4028/www.scientific.net/AMR.225-226.601

Citation:

G. R. Zeng et al., "Robustness Analysis of QIM Watermarking against Additional Noise", Advanced Materials Research, Vols. 225-226, pp. 601-604, 2011

Online since:

April 2011

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Price:

$35.00

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