Fwd: Convolution

[Bart Coppens]

On Thursday 26 May 2005 07:12, Casper Boemann wrote:
> I wuld like to warn against per channel kernels.
>
> I actualy changed it from 4 to one a while back.
>
> The reason is colorspace independence.
You have a point. However, I would still like to see at least a seperate 
kernel for the alpha channel. This is because normal filters should not 
affect the alpha channel, but some filters do require that (for example, 
feathering the selection applies a gaussian blur to the selection paint 
device, which has only an alpha channel)