Wavelet-based contrast computation and application to digital image watermarking

Pierre Vandergheynst; Martin Kutter; Stefan Winkler

doi:10.1117/12.408658

4 December 2000 Wavelet-based contrast computation and application to digital image watermarking

Pierre Vandergheynst, Martin Kutter, Stefan Winkler

Proceedings Volume 4119, Wavelet Applications in Signal and Image Processing VIII; (2000) https://doi.org/10.1117/12.408658
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We introduce an isotopic measure of local contrast for natural images that is based on analytic filters and present the design of directional wavelet frames suitable for its computation. We show how this contrast measure can be used within a masking model to facilitate the insertion of a watermark in an image while minimizing visual distortion.

Citation Download Citation

Pierre Vandergheynst, Martin Kutter, and Stefan Winkler "Wavelet-based contrast computation and application to digital image watermarking", Proc. SPIE 4119, Wavelet Applications in Signal and Image Processing VIII, (4 December 2000); https://doi.org/10.1117/12.408658

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