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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 3, Iss. 12 — Dec. 7, 1998
  • pp: 497–511

Wavelet transform based watermark for digital images

Xiang-Gen Xia, Charles G. Boncelet, and Gonzalo R. Arce  »View Author Affiliations

Optics Express, Vol. 3, Issue 12, pp. 497-511 (1998)

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In this paper, we introduce a new multiresolution watermarking method for digital images. The method is based on the discrete wavelet transform (DWT). Pseudo-random codes are added to the large coefficients at the high and middle frequency bands of the DWT of an image. It is shown that this method is more robust to proposed methods to some common image distortions, such as the wavelet transform based image compression, image rescaling/stretching and image halftoning. Moreover, the method is hierarchical.

© Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(110.2960) Imaging systems : Image analysis

ToC Category:
Focus Issue: Digital watermarking

Original Manuscript: October 28, 1998
Published: December 7, 1998

Xiang Gen Xia, Charles Boncelet, and Gonzalo Arce, "Wavelet transform based watermark for digital images," Opt. Express 3, 497-511 (1998)

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