Rotation, Scaling, Translation Invariant Image Watermarking Based on Radon Transform

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Venue:
CRV '04 Proceedings of the 1st Canadian Conference on Computer and Robot Vision
Year:
2004

Citing 4
Cited 2

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Abstract

Many image watermarking schemesagainst geometric attacks have been proposed. Rotation,scaling, translation (RST) invariant image watermarkingbased on log-polar mapping (LPM) andRadon transform is one of them. In this paper, weanalyze the embedding and detection process of theabove-mentioned method. We focus on how to selectthe watermark data, how to embed the watermarkinto the original image, and how to implement approximativeinverse log-polar mapping (ILPM) duringthe embedding process. We analyze watermarkdetection when a watermarked image is scaled or rotated,and propose to use the rotation rectification tobattle rotation. Three detection methods are compared.