Kundu, Malay KMaity, Santi P2013-01-302013-01-302011International Journal of wavelets, Multiresolution and Information Processing ( IJWMIP), v. 9, no. 1, pp. 1-33http://hdl.handle.net/10263/5200enPerformance improvementWaveletsImage watermarkingSpectrum imagePerformance improvement in spread spectrum image watermarking using waveletsArticle