A Novel Watermarking Scheme in Contourlet Domain Based on Schur Factorization

A novel blind digital image watermarking scheme based on Schur factorization in contourlet domain is proposed in this paper. Firstly, the original cover image is decomposed by contourlet domain, then Schur factorization is adopted to the selected symmetric blocks determined by the lowpass subband wh...

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Bibliographic Details
Published in2010 2nd International Conference on Information Engineering and Computer Science pp. 1 - 4
Main Authors Peng Liu, Jun Yang, Juan Wei, Feng Chen
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2010
Subjects
Cryptography
Image coding
Noise
Robustness
Symmetric matrices
Transforms
Watermarking
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Summary:A novel blind digital image watermarking scheme based on Schur factorization in contourlet domain is proposed in this paper. Firstly, the original cover image is decomposed by contourlet domain, then Schur factorization is adopted to the selected symmetric blocks determined by the lowpass subband where watermark information is embedded. Additionally, the watermark image is encrypted by a pseudorandom sequence generated by the piecewise linear map before embedded. Experimental results show that in comparison with similar schemes based on singular value decomposition, the proposed method is more invisible and robust against most common image processing attacks, such as median filter, noise addition, cropping, JPEG compression, and so on.
ISBN:1424479398
9781424479399
ISSN:2156-7379
DOI:10.1109/ICIECS.2010.5677754