Talk:Image convolution

I haven't been able to find the explanation of this technic on the English wikipedia. There is an article about convolution but it does not talk at all about how to apply it on image processing. In the French area it is in this article:

• (image processing # linear filters) (the target points on the good paragraph)

but when I grep in the English equivalent I find nothing. Nothing too in the article linear filter even if the word convolution appears, but without details.
Maybe someone else will be more lucky than me to find where it is (or maybe there is a lack). Blue Prawn 19:31, 7 December 2008 (UTC)