A novel adaptive multi-resolution combined watermarking algorithm

Gui Feng; QiWei Lin

doi:10.1117/12.780159

19 May 2008 A novel adaptive multi-resolution combined watermarking algorithm

Gui Feng, QiWei Lin

Proceedings Volume 7000, Optical and Digital Image Processing; 70000Y (2008) https://doi.org/10.1117/12.780159
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

The rapid development of IT and WWW technique, causing person frequently confronts with various kinds of authorized identification problem, especially the copyright problem of digital products. The digital watermarking technique was emerged as one kind of solutions. The balance between robustness and imperceptibility is always the object sought by related researchers. In order to settle the problem of robustness and imperceptibility, a novel adaptive multi-resolution combined digital image watermarking algorithm was proposed in this paper. In the proposed algorithm, we first decompose the watermark into several sub-bands, and according to its significance to embed the sub-band to different DWT coefficient of the carrier image. While embedding, the HVS was considered. So under the precondition of keeping the quality of image, the larger capacity of watermark can be embedding. The experimental results have shown that the proposed algorithm has better performance in the aspects of robustness and security. And with the same visual quality, the technique has larger capacity. So the unification of robustness and imperceptibility was achieved.

Citation Download Citation

Gui Feng and QiWei Lin "A novel adaptive multi-resolution combined watermarking algorithm", Proc. SPIE 7000, Optical and Digital Image Processing, 70000Y (19 May 2008); https://doi.org/10.1117/12.780159

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KEYWORDS

Digital watermarking

Discrete wavelet transforms

Image quality

Feature extraction

Visualization

Image processing

Digital imaging

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