Adaptive watermarking scheme based on ICA and RDWT

This paper proposes a new approach to watermarking multimedia products based on the combination of redundant discrete wavelet transform and independent component analysis. The original image is decomposed by RDWT, and watermark is embedded in to LL sub-band frequency according mixing model of the IC...

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Main Authors: Oskooei, S.G, Dadgostar, M, Rad, G.R, Fatemizadeh, E
Format: Conference Proceeding
Language:English
Subjects:
Computer vision and image processing techniques
Data security
Image and video coding
Integral transforms
Other topics in statistics
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creator Oskooei, S.G
Dadgostar, M
Rad, G.R
Fatemizadeh, E
description This paper proposes a new approach to watermarking multimedia products based on the combination of redundant discrete wavelet transform and independent component analysis. The original image is decomposed by RDWT, and watermark is embedded in to LL sub-band frequency according mixing model of the ICA, after that for enhancing the robustness of the watermark, the perceptual model is applied via stochastic approach for watermark adapting. This is based on computation of a noise visibility function (NVF) which has local image properties so the strength of watermarking is controllable. Principal component analysis (PCA) whitening process and FastICA techniques are introduced to ensure a blind watermark extraction without requiring the original image. Experimental results show the proposed technique is robust under compression attacks. (4 pages)
doi_str_mv 10.1049/ic.2009.0239
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subjects Computer vision and image processing techniques
Data security
Image and video coding
Integral transforms
Other topics in statistics
title Adaptive watermarking scheme based on ICA and RDWT
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