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Variable dimension vector quantization based image watermarking

Makur, A and Selvi, SS (2001) Variable dimension vector quantization based image watermarking. In: Signal Processing, 81 (4). pp. 889-893.

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Abstract

In this paper, we present a watermarking method based on variable dimension vector quantization for hiding information in images. Watermark bits are embedded in the dimension information of the variable dimension reconstruction blocks of the cover or input image. Watermark extraction does not require the existence of the original image for oblivious watermarking, while a variation of the scheme for cover escrow watermarking is also presented to increase robustness. Experimental results show the effectiveness of the proposed scheme and this scheme gives comparable capacity with the existing schemes

Item Type: Journal Article
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 03 Jun 2006
Last Modified: 27 Aug 2008 12:10
URI: http://eprints.iisc.ernet.in/id/eprint/7526

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