Re: [SPAM] RE: [WM]: Purpose of using lena image!!!

[Jaikishan jalan <jai_ism@yahoo.com>]

Dear Prof Edward,

Can you us some pointers related to good data on which we can carry our tests?
"Edward J. Delp" <ace@ecn.purdue.edu> wrote: > How about the F-16, Camera man, Baboon, Pepper and Boat? Are they as 
> bad as Lena?

Yes some of these also started "life" as half-tone images.

I do not understand why people want to use these images for data hiding when you can see the half-tone screen in the lower order
bits.

Also do you know who owns these images?

I find it amazing that people say that "watermarking can be used for content protection" and then use images that have unknown
ownership.

They are much better data sets available.
-- 

============================================================
Professor Edward J. Delp
Purdue University
School of Electrical and Computer Engineering
465 Northwestern Avenue
West Lafayette, IN 47907-2035
USA 

Email: ace@ecn.purdue.edu

Telephone: +1 765 494 1740
Fax: +1 765 494 0880

URL: http://www.ece.purdue.edu/~ace

Map Location:
Latitude: N 40 25.767
Longitude: W 86 54.744
Datum: WGS72

"Badges? We ain't got no badges. We don't need no badges.
I don't have to show you any stinking badges!"

"Go tell the Spartans,
Passerby,
That here, obedient to their laws,
We lie."
============================================================


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Regards,

Jaikishan Jalan
Senior Undergraduate
B.Tech,Computer Science and Engineering
ISM,Dhanbad

Homepage: http://www.geocities.com/jai_ism/
		


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