PAK-9

30th July 2004 14:23 UTC

Additional Convolutions
The convolution filter rocks, but it can be a little slow, it would be cool if there were some preset convolutions that were hard-coded for optimisation. That way common convo's like gaussian blurs, emboss etc... would be nice and fast.

I appreciate that this is an APE we're talking about so perhaps it should be a request directed to Tom Holden.

AvsManDan

30th July 2004 23:24 UTC

Try to divide all filters by multiples of 2. Also, there is a convolution pack somewhere. It showed how it works and quite a few useful and fast example filthers.

PAK-9

31st July 2004 19:26 UTC

I think your missing the point, hard coded convolutions using code optimisations and hacks would be much much faster.

TomyLobo

5th August 2004 21:48 UTC

...not to mention that avsmandan's tip was wrong... it is not multiples of 2 but powers of 2 (i.e. 1, 2, 4, 8, 16, 32...)