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Scientific article
Open access
English

An Iterative Template Matching Algorithm Using the Chirp-Z Transform for Digital Image Watermarking

Published inPattern recognition, vol. 33, no. 1, p. 173-175
Publication date2000
Abstract

Digital watermarks have been proposed as a method for discouraging illicit copying and distribution of copyrighted material. This paper describes a method for the secure and robust copyright protection of digital images. The key contribution lies in the development of a fast iterative template matching algorithm based on log-log or log-polar maps. The algorithm exploits the properties of the Chirp-Z transform to obtain the accuracy needed in the detection of transformations in realistic watermarking applications. Test results verify the robustness of the method.

Keywords
  • Watermarking
Citation (ISO format)
PEREIRA, Shelby, PUN, Thierry. An Iterative Template Matching Algorithm Using the Chirp-Z Transform for Digital Image Watermarking. In: Pattern recognition, 2000, vol. 33, n° 1, p. 173–175. doi: 10.1016/S0031-3203(99)00106-5
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Article (Published version)
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ISSN of the journal0031-3203
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