Abstract
A color image watermarking algorithm based on SVD and DWT is proposed. First, watermark image is preprocessed by Arnold transform to improve algorithm security. Second, the low-frequency component of blue subgraph coefficients extracted from a host image decomposed by 2-DWT is analyzed by SVD. Then, the corresponding singular value of watermark image is embedded into the host image. Simulation results show that proposed method, guaranteeing algorithm high embedding capacity, has better performance in terms of invisibility and improves robustness significantly against a variety of noises, compression, shear and rotation, etc, attacks.
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Acknowledgements
This study is funded by the Humanities and Social Sciences Project of China Ministry of Education (11YJCZH021), Excellent Course Developing Project of Shandong Province (2011BK163) and National University Students Innovation Project (201410446028).
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© 2016 Springer Science+Business Media Singapore
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Niu, Y., Cui, X., Li, Q., Ding, J. (2016). A SVD-Based Color Image Watermark Algorithm in DWT Domain. In: Ouyang, Y., Xu, M., Yang, L., Ouyang, Y. (eds) Advanced Graphic Communications, Packaging Technology and Materials. Lecture Notes in Electrical Engineering, vol 369. Springer, Singapore. https://doi.org/10.1007/978-981-10-0072-0_39
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DOI: https://doi.org/10.1007/978-981-10-0072-0_39
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