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Significant pixel watermarking using human visual system model in wavelet domain

DSpace at IIT Bombay

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Title Significant pixel watermarking using human visual system model in wavelet domain
 
Creator JAYALAKSHMI, M
MERCHANT, SN
DESAI, UB
 
Description In this paper, we propose a novel algorithm for robust image watermarking by inserting a single copy of the watermark. Usually, robustness is achieved by embedding multiple copies of the watermark. The proposed method locates and watermarks 'significant pixels' of the image in the wavelet domain. Here, the amount of distortion at every pixel is kept within the threshold of perception by adopting ideas from Human Visual System (HVS) model. The robustness of the proposed method was verified under six different attacks. To verify the advantage of selecting the significant pixels over the highest absolute coefficients, simulations were performed under both cases with quantization of pixels as per HVS model. Simulation results show the advantage of selecting the 'significant pixels' for watermarking gray images as well as color images.
 
Publisher SPRINGER-VERLAG BERLIN
 
Date 2011-10-23T21:07:27Z
2011-12-15T09:11:02Z
2011-10-23T21:07:27Z
2011-12-15T09:11:02Z
2006
 
Type Proceedings Paper
 
Identifier Computer Vision, Graphics and Image Processing, Proceedings,4338,206-215
978-3-540-68301-8
0302-9743
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15236
http://hdl.handle.net/100/1815
 
Source 5th Indian Conference on Computer Vision, Graphics and Image Processing,Madurai, INDIA,DEC 13-16, 2006
 
Language English