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[WM]: doubt in dct based watermarking in images
&nb
sp;
iam working on the paper "A ROBUST DCT-BASED WATERMARKING FOR
COPYRIGHT PROTECTION " IEEE Transactions on Consumer Electronics
Vol 46,No.3 August 2000.In this paper they have embedded the watermark
image in the LSB of DCT coefficient.But i found that the DCT
Coefficients r in negative non integers (eg. -0.0015). i thought to
embed the watermark in the LSB of the absolute DCT coeff value is it
right. or how to take binary value of such -Ve non integers.please help
me.
Thanks in advance.
by
Vinoth
(mailto_vinu@yahoo.com)
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