Reversible image watermarking through coordinate logic operation based prediction

Authors:
Ruchira Naskar;Rajat Subhra Chakraborty
Affiliations:
Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India;Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
Venue:
ICISS'11 Proceedings of the 7th international conference on Information Systems Security
Year:
2011

Citing 6
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Abstract

Reversible digital watermarking techniques enable the recovery of the original “cover image” from an watermarked image in a distortion–free way. Reversible watermarking techniques find application in military and medical imagery, where integrity of the cover image is of utmost importance. In this paper we propose a reversible digital image watermarking algorithm which predicts a pixel grayscale value exploiting its correlation with its neighboring pixels, using coordinate logic operations, and embeds watermark bits into the prediction errors. We have compared the performance of our scheme with other reversible watermarking schemes. Results indicate that the cover image distortion produced by the proposed algorithm is lower than other state–of–the–art reversible watermarking algorithms.