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作者:K.Satya Prasad , D. Gopikrishna
来源:[J].Materials Characterization(IF 1.88), 1995, Vol.35 (2), pp.93-98Elsevier
摘要:Abstract(#br)This investigation explored the factors responsible for the wide variations in the notch-rupture properties of wrought superalloy 718. Microstructural characterization of selected failed samples, using optical and transmission electron microscopy, revealed that ...
作者:C.Venkata Narasimhulu , K.Satya Prasad
来源:[J].International Journal of Computer Applications, 2011, Vol.20 (8), pp.18DOAJ
摘要:The authors propose a new hybrid watermarking scheme for copyright protection of color images using contourlet transform and singular value decomposition. The host color image and color watermark images are decomposed into directional sub bands using contourlet transform and then...
作者:C.Venkata Narasimhulu , K.Satya Prasad
来源:[J].International Journal of Multimedia & Its Applications, 2011, Vol.3 (1), pp.37DOAJ
摘要: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 ...
作者:K.Satya Prasad , A.A. Gokhale ...
来源:[J].1992, Vol.26 (12), pp.1803-1808Elsevier

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