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A Secure Quantization-Based Watermarking Scheme Using An Improved Statistical Model in the Wavelet Domain

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2 Author(s)
Rezazadeh, S. ; Shiraz Univ., Shiraz ; Rafiei, A.

In this paper, we have proposed a secure semi-fragile watermarking technique for content authentication of digital images. A binary image is encrypted in an efficient way and then embedded as the watermark for tamper detection. The watermark is embedded by applying a quantization index modulation process on Euclidean norm of singular values of blocks in the wavelet domain. To avoid visual degradation of watermarked image, we have enhanced a model to take into consideration blocks statistics of the host image. Experimental results are presented for well known images to demonstrate effectiveness of our method.

Published in:

Information and Communication Technology, 2007. ICICT '07. International Conference on

Date of Conference:

7-9 March 2007