Re: Defocusing and grain

[Kennedy McEwen <rkm@xxxxxxxxxxxxxxxxxxxx>]

In article <3CB3E9FB.2060304@shaw.ca>, Arthur Entlich 
<artistic-1@shaw.ca> writes
>
>This creates a noticeably soft result.  The "good" part about it is it 
>reduced grain and dirt/dust considerably.  The bad part is that 
>although  I had many less of the typical speckled  type of sharpening 
>artifacts, when I used USM, the amount of USM necessary to make the 
>image look sharp created a different artifact - overly accentuated edge 
>definition.
>
What USM parameters are you using?  I would expect that the radius 
should be one pixel or less for the level of defocus that would be 
sufficient to reduce aliasing to an acceptable level.
-- 
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers
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