Fwd: Convolution

Boudewijn Rempt boud at valdyas.org
Thu May 26 11:04:21 CEST 2005

On Thursday 26 May 2005 11:00, Bart Coppens wrote:

> Well, maybe that's because I put a -1 there somewhere, to avoid affecting
> the alpha channel with regular filters.

Yes, that's it... I'll check in a new temporary version that's a bit 
efficienter when things are selected, and I'm going to think about a correct 
api for convolving other things than colour.

> Yes, but I feared this would give very strange effects if you tried to
> apply something like edge detection on the alpha channel. It could work,
> though, I never actually tried it :)


Boudewijn Rempt 
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