[Tig] Image from Peter Swinson

[Rob Lingelbach]

On Jan 12, 2007, at 8:56 , Bob Friesenhahn wrote:
>
> The problem with random noise in a transmission system is that it  
> causes considerable harm if it is injected before the signal is  
> sent. If it is added after the signal is received (e.g. in the TV),  
> then it helps mask defects without burdening the transmission  
> system. Particularly it helps mask image blur and apparent banding.

Then an argument could be made that broadcast technology is improving  
so rapidly
and in so appropriate a direction that now we need to find the  
digital equivalent, in the
home receiver, of the rabbit-ears antenna.

(I admit that's going a bit far, and in satellite and most cable  
systems we don't really have problems with multipath ghosting as used  
to happen with home antenna systems, but are compression artifacts  
really a better option than the problems with terrestrial over-the- 
air transmission?  I can rotate my antenna, but I can't change a  
compression scheme.)

Rob
--
Rob Lingelbach
http://www.colorist.org/robhome.html