You may have to search around the site for a bit (I don't remember exactly
where they are), but this issue of edge treatment is discussed at
http://www.dtphelp.com

>A few times lately I've seen photographic images that have had their edges 
>either look as though they are torn in a random manner and/or gently fade 
>to nothing. I presume this effect is achieved through the use of a 
>filter(s). if so do you know where this filter can be obtained or how else 
>the effect can be achieved?

Barn
(Byron Canfield)
http://www.byronc.com
================================
    "Inside every large problem
     there is a small problem struggling to get out."
          --Hoare's Law of Problem Solving

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