Archived posting to the Leica Users Group, 1998/06/24

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Subject: RE: [Leica] Leica S1
From: Glenn Waterfield <gwaterfi@eecs.ukans.edu>
Date: Wed, 24 Jun 1998 16:21:40 -0500

Yes, "electronic watermarks" or digital signatures can be added to digital images.
 Search the web for steganography. 

Glenn Waterfield

>How can one protect copyright with an original digital image,  Or
>should I say how can a photographer prove that the Image is his when
>there is no negative.  Or should I say that a second generation copy
>must be identical in all respects to the original.  So whose is it, and
>how can it be proved.  Maybe the S2 will innovate an electronic
>watermark. ????
>
>Alan Hull

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