A Watermarking Technique Using Means and Differences of Neighboring Wavelet Transform Coefficient Pairs


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 6, pp. 1980-1987, Jun. 2000
10.3745/KIPSTE.2000.7.6.1980,   PDF Download:

Abstract

In this paper, an efficient watermarking technique in wavelet transform domain is proposed. Watermarking is embedding a digital signal called as ``watermark`` into images to claim the ownership. In the proposed method, the image is 1-level wavelet transformed, and then the watermark with a binary stamp is embedded into the baseband. The watermark is embedded by inverting the polarities of he selected coefficient paris. In the inverting process, we can increase image quality by finding means and differences of the selected neighboring coefficient paris, and then adding values, which are inversely proportional to the differences, to th means. The experimental results show that the proposed method has good quality and is robust to various attacks such as the JPEG lossy comparison, noise addition, clipping, blurring, etc.


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Cite this article
[IEEE Style]
H. S. Kim, S. H. Bae, K. H. Park, "A Watermarking Technique Using Means and Differences of Neighboring Wavelet Transform Coefficient Pairs," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 7, no. 6, pp. 1980-1987, 2000. DOI: 10.3745/KIPSTE.2000.7.6.1980.

[ACM Style]
Hyun Soon Kim, Sung Ho Bae, and Kil Houm Park. 2000. A Watermarking Technique Using Means and Differences of Neighboring Wavelet Transform Coefficient Pairs. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 7, 6, (2000), 1980-1987. DOI: 10.3745/KIPSTE.2000.7.6.1980.