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Section A

A new difference expansion transform in triplets for reversible data hiding

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Pages 2016-2025 | Received 26 Oct 2009, Accepted 05 Nov 2010, Published online: 31 Mar 2011
 

Abstract

Difference expansion (DE) has been widely used for reversible data hiding. In this paper, a novel transform which embeds two bits of information in a triplet of coefficients is presented. This transform can be applied in spatial or frequency domains and induces minimum distortion to the initial data or coefficients. The proposed method outperforms all similar DE methods using triplets in terms of computational cost, visual quality and bitrate.

2010 AMS Subject Classifications :

Acknowledgements

This work was funded by the European Union – European Social Fund (75%), the Greek Government – Ministry of Development – General Secretariat of Research and Technology (25%) and the Private Sector in the frames of the European Competitiveness Programme (Third Community Support Framework – Measure 8.3 – programme – contract no.03EΔ832).

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