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[WM]: why mean , variances and scaling factor is required??
hi friends.........
i am implenting visible watermarking using DCT
can anyone explain me why do we find the mean and the variance of the original and the watermark image????
and why do we scale the DCT of the original image and the [ MEAN ] and the [ log of the VARIANCES ] between 0 and 1
waiting.......................................................
thanking u in advance.....
rajan...
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