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Review Article

JCR. 2020; 7(2): 561-567


PERCEPTUAL MASKING BASED MEDICAL IMAGE WATERMARKING USING DTCWT AND HVS

Kavitha V, Palanisamy C, Sureshkumar T.

Abstract
In this paper, a DTCWT based perceptual watermarking scheme for medical images is proposed. The imperceptibility characteristic is ensured using a new proposed perceptual masking model. Both the host image and the cover image are decomposed using 2level DTCWT. The quantization for the selected subband coefficients for embedding is measured using HVS mathematical model which produces the watermark weighing function. The method is experimented for its performance against common attacks and the results have proven that the model was robust to withstand most of the attacks.

Key words: medical image compression, DTCWT, HVS


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