Perceptual watermarking using a multi-scale JNC model

Authors:
Phi-Bang Nguyen;Marie Luong;Azeddine Beghdadi
Affiliations:
L2TI Laboratory, University Paris 13, Galilée Institute, Villetaneuse, France;L2TI Laboratory, University Paris 13, Galilée Institute, Villetaneuse, France;L2TI Laboratory, University Paris 13, Galilée Institute, Villetaneuse, France
Venue:
ACIIDS'10 Proceedings of the Second international conference on Intelligent information and database systems: Part II
Year:
2010

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Abstract

In this paper, we propose a novel watermarking method based on a multi-scale JNC (Just Noticeable Contrast) map. The main idea consists in using this JNC map to determine the optimal strength for embedding the watermark providing an invisible and robust watermarking scheme. The image is first decomposed into a multi-scale representation using the scale space decomposition. A multi-scale band limited contrast is then computed. The watermark is inserted into these contrast images. An experimental evaluation is carried out to demonstrate the performance of the proposed technique in terms of transparency and robustness to a wide variety of attacks.