A Study on Wavelet Based Watermarking using Human Visual System Property 


Vol. 27,  No. 4, pp. 336-344, Apr.  2002


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  Abstract

Recently, aegis of authentication and creator's copyright has become a matter of great concern by the diffusion of multimedia technique and the growth of the internet and the easily duplicated property of digital data. Consequently, many active researches have been made to protect copyright and to assure integrity by inserting watermark into the digital data. In this paper, watermark is repeated through the entire image and adapted to the content of the image. It is achieved by an underlying process of transforming the digital image to the frequency domain by wavelet transform, which has three (vertical, horizontal, diagonal) directions and Multi-resolution features, and then choosing frequency area inferior to the human perceptibility and significant for invisible and robust watermark. Watermark is inserted by utilizing Human Visual System (HVS) feature in the wavelet transformed frequency domain. Especially, watermark inserted into the high frequency concentrated textual area makes itself invisible.

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  Cite this article

[IEEE Style]

S. Y. Roh and S. J. Park, "A Study on Wavelet Based Watermarking using Human Visual System Property," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 336-344, 2002. DOI: .

[ACM Style]

Sang Yun Roh and Sang Ju Park. 2002. A Study on Wavelet Based Watermarking using Human Visual System Property. The Journal of Korean Institute of Communications and Information Sciences, 27, 4, (2002), 336-344. DOI: .

[KICS Style]

Sang Yun Roh and Sang Ju Park, "A Study on Wavelet Based Watermarking using Human Visual System Property," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 336-344, 4. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880