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Re: [WM]: Orthonormal vectors
Hi, madan mohan,
Genarally, we can embed sevaral orthonormal vectors into one image. Low pass filtering does not effect these vectors much.
Yours,
Steven Chiu
>2005-11-16 16:40:00 You wrote:
>>Hello watermarkers,
>
> Is it possible to add two or more random orthonormal vectors without
>affecting image quality. If it is possible, will there be any impact if
>the image is then low pass filtered? Can the presence of those added orthonormal vectors can be detected using correlation after
low pass filtering?
>
> thank you in advance,
>
> regards
> Madan
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