ATTACKS ON DIGITAL WAVELET IMAGE WATERMARKS

Andreja Samčović - Ján Turán

   In the last decade, a large number of schemes have been proposed for hiding copyright marks and other information in digital images. Watermarking is a potential method for protection of ownership rights on digital images. Any processing that may impair detection of the watermark or communication of the information conveyed by the watermark is in watermarking technology called an attack. This paper presents a number of attacks that enable the information hidden by them to be removed or otherwise rendered unusable. Also, some attacks are tested on a watermarking algorithm based on wavelets.

Keywords: watermarking, image, attacks, wavelets, signal processing

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