A Wavelet-Based Watermarking Scheme of Digital Image Using ROI Method


The KIPS Transactions:PartB , Vol. 11, No. 3, pp. 289-296, Jun. 2004
10.3745/KIPSTB.2004.11.3.289,   PDF Download:

Abstract

General watermarking techniques tend not to consider intrinsic characteristics of image, so that watermarks are embeded to entire images. In this paper, we present a watermarking algorithm based on wavelet domain, and the watermark is embedded into large coefficients in region of interest(ROI) being based on principle of multi-threshold watermark coding(MTWC) for robust watermark insertion. We try to accomplish both image quality and robustness using human visual system(HVS). The watermarks are embedded in middle frequency bands because the distortion degree of watermarked images appears to be less than lower frequency bands, and the embedded watermarks in the middle bands showed high extraction ratios after some distortion. The watermarks are consisted of pseudo random sequences and detected using Cox´s similarity mesurement.


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Cite this article
[IEEE Style]
T. J. Kim, C. S. Hong, J. H. Sung, J. H. Hwang, D. Y. Lee, "A Wavelet-Based Watermarking Scheme of Digital Image Using ROI Method," The KIPS Transactions:PartB , vol. 11, no. 3, pp. 289-296, 2004. DOI: 10.3745/KIPSTB.2004.11.3.289.

[ACM Style]
Tae Jung Kim, Choong Seon Hong, Ji Hyun Sung, Jae Ho Hwang, and Dae Young Lee. 2004. A Wavelet-Based Watermarking Scheme of Digital Image Using ROI Method. The KIPS Transactions:PartB , 11, 3, (2004), 289-296. DOI: 10.3745/KIPSTB.2004.11.3.289.