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Re: [WM]: how many bits we should embed in an applicable watermarking system?
How about 31bits?
As i know, watermarking is different from information hiding. if we use the 31bits to identify the user of a image, the system
can use to identify 2 .^ 31(or 2,147,483,648) users. Is that not enough?
On 5/19/05, Dennis Wong <dwong@swinburne.edu.my> wrote:
> ascii code without parity is 7 bits for a letter. It really depends on
>what your application is, but with only 15 bits, u can do little, and
>besides, you can't get very good orthogonal coding with 15 bits.
>
> Dennis
>
> water sun wrote:
>
> >Hi,all
> >i was told that the watermarking system which can only embedding
> >15bits is useless. Is that right?
> >Thank you!
> >
> >
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> --
>
>========================3
>D============================
> Dr. Dennis Wong PhD BEng(Hons) MIEE MIEEE School of Engineering,
> Swinburne University of Technology (Sarawak Campus), Kompleks Negeri,
> Jalan Simpang Tiga,
> 93576 Kuching, Sarawak,
> Malaysia.
> Email: dwong@swinburne.edu.my Tel: +6082-416353
> Web: http://www.swinburne.edu.my Fax: +6082-423594
> =======================> 3D============================
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> =======================> 3D============================
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--
Best regards
Shuifa SUN
Department of Computer science,
City University of Hongkong
watersun@gmail.com
852-21949719
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