[fpc-pascal] fpimage blur

Mattias Gaertner nc-gaertnma at netcologne.de
Thu May 31 17:36:21 CEST 2012

"S.Anil Yilmaz" <anilyilmaz at karatahta.com> hat am 31. Mai 2012 um 16:39

> Bgrabitmap for Lazarus has such filters as far as I know. You may use the
> algoritms I suppose.


It has some nice blur algorithms.

But as far as I can see:
BGRA is RGBA 8bit, I need up to 16 bit gray scale.
FilterBlur allocates a copy of an image. I have big images, so I would like to
avoid that.

FilterBlur seems to require runtime O(Width*Height*Radius^2). I need Radius 20,
so this would be quite slow.


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