need some help with custom filter in Photoshop

From: Blaine Waddington (v_at_z.m)
Date: 02/27/05 

Date: Sun, 27 Feb 2005 02:21:12 GMT

I keep running into these "custom" or kernal filters in Photoshop and other
programs but, try as I might, I have been unable to find good tutorials as
to how they work with some practical input values. I can play with
inputting different values all night long, but I still have hardly a clue as
to what's going on. Yet, I see a lot of potential here. Can anyone suggest
some on-line decent tutorials with examples as to how it works? And, when
an image is smoothed with this function, how is it different from a gaussian
blur?

Thanks much,
Blaine

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