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Proceedings Paper

Embedding strategy of image watermarking in wavelet transform domain
Author(s): Zhengqing Zhang; Yu Long Mo
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Paper Abstract

In this paper, we study a new strategy to embed watermarks to the scale subband of image wavelet transform domain. The coefficients in scale subband are much bigger than most coefficients in other subband. This means the coefficients in scale subband have higher perceptual capacity than coefficients in other subband to embed watermarks. We also use nonlinear wavelet transform derived from lifting scheme to get bigger scale subband coefficients. The experiment result shows the scheme is robust enough and the image watermarking algorithm using nonlinear wavelet transform is more robust than algorithms using usual wavelet transform.

Paper Details

Date Published: 26 September 2001
PDF: 5 pages
Proc. SPIE 4551, Image Compression and Encryption Technologies, (26 September 2001); doi: 10.1117/12.442900
Show Author Affiliations
Zhengqing Zhang, Shanghai Univ. (China)
Yu Long Mo, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 4551:
Image Compression and Encryption Technologies

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