Dither Modulation in the Logarithmic Domain

9 years 5 months ago
Dither Modulation in the Logarithmic Domain
Abstract. Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they desynchronize the decoder, completely ruining the performance of the watermarking system with almost non perceptually altering the watermarked signal. In this paper we propose a new family of quantizationbased methods, based on both Dither Modulation and Spread Transform Dither Modulation, oriented to deal with those attacks, and which presents another outstanding property: they produce perceptually shaped watermarks.
Pedro Comesaña, Fernando Pérez-Gonz&
Added 08 Jun 2010
Updated 08 Jun 2010
Type Conference
Year 2007
Where IWDW
Authors Pedro Comesaña, Fernando Pérez-González
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