YOurs SaRIn....


On Tue, May 18, 2010 at 10:17 PM, Nicola Perotto <nicola@nicolaperotto.it>wrote:

>
>
>
> For test I used Photoshop (->Filter -> Other -> Custom) and a matrix 3x3
> like this:
>
>        -1
>
>
>
>
>
>        1
>
>
> this enhance the upper side of the contour
>
I didnt understand that.
filtered using a 3X3 matrix, but after that? and what kind of matrix?

>
>
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