4 December 2000 Wavelet-based contrast computation and application to digital image watermarking
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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.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.408658; https://doi.org/10.1117/12.408658
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