[Tig] Image from Peter Swinson

[Bob Friesenhahn]

On Fri, 12 Jan 2007, Rob Lingelbach wrote:
>
> Peter Swinson sent us an image to which he refers in an upcoming
> post.  The
> image is at
> http://tig.colorist.org/wiki3/index.php/Peter_Swinson_on_Super_16
> and hopefully we'll hear soon from him more about this comparison.

It is clear that the noisy image looks sharper and it entirely masks 
the girl's apparent skin disease. :-)

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.

Bob
======================================
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/