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A Novel Robust Watermarking Technique Based on Nonsubsampled Contourlet Transform and SVD
2011
The International Journal of Multimedia & Its Applications
The paper proposes a novel robust watermarking technique based on newly introduced Nonsubsampled contourlet transform(NSCT) and singular value decomposition(SVD) for multimedia copyright protection. The NSCT can give the asymptotic optimal representation of the edges and contours in image by virtue of the characteristics of good multi resolution shift invariance and multi directionality. After decomposing the host image into sub bands, we choose the low frequency directional sub band and apply
doi:10.5121/ijma.2011.3104
fatcat:hagd2vrdo5gajk5dujhlciypaa