Efficient quality access control sceme for compressed gray scale image using DWT via lifting

Phadikar, AMaity, Santi PKundu, Malay K2011-08-122011-08-122008Proceedings of the national conference on information security-issues abd challenges,P120-127http://hdl.handle.net/10263/2514enPassive data hidingAccess controlSecurityCompressed domainROIWaveletLiftingEfficient quality access control sceme for compressed gray scale image using DWT via liftingArticle