On Tue, Mar 11, 2003 at 10:15:51AM -0800, Daniel Rogers wrote:
> Alpha is a measure of the amount of coverage of the pixel. (e.g. an
> alpha of .5 means half the pixel is covered). In particular, 0 alpha
> means that the pixel is not covered at all. This means that the pixel
> contributes NO color information. I think this should hold for blur as
> well. And from that point of view, no pixel with alpha zero should ever
> contribute color information.
How do you propose this being implemented, ie. what value would you plug into
the IIR filter GIMP's blur is based on, for a pixel with alpha != 255?
/* Steinar */
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