replacementandLSBmatchingsteganalysishavebeenstudied.Tothisend,thispap - PDF document

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Uploaded On 2015-09-16

replacementandLSBmatchingsteganalysishavebeenstudied.Tothisend,thispap - PPT Presentation

47Xm07Xn0zmncos2m1p 16cos2n1q 161wherezmn0m70n7denotesapixelwithina88blockofZandIpq0p70q7denotestheDCTcoefcientofthecorrespondingblockforthesubbandatlocationpqT ID: 130443

47Xm=07Xn=0zm;ncos(2m+1)p 16cos(2n+1)q 16(1)wherezm;n;0m7;0n7denotesapixelwithina88blockofZ andIp;q;0p7;0q7denotestheDCTcoefcientofthecorrespondingblock forthesub-bandatlocation(p;q).T

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