Hi,
On Thu, 2009-01-15 at 18:19 -0600, Winston Chang wrote:
> OK - I'll submit the patches via bugzilla, then.
Yes, please do that. It would be very nice if we could speed up the
unsharp-mask plug-in for GIMP 2.8. Its slowness is quite often mentioned
in GIMP reviews and it makes GIMP look badly
>
> > Hi!
> >
> > I want to mention that since we are in the progress of migrating to GEGL
> > we generally prefer that people make sure the GEGL counterpart works
> > well rather than maintaining the legacy 8 bpc code. A patch for GEGL is
> > much more attractive than a patch for an old GIMP plug-
On Thu, 2009-01-15 at 08:43 +0100, Martin Nordholts wrote:
> Winston Chang wrote:
> > I took a look at the svn history of unsharp-mask.c (I'm the original
> > author) and saw that the fix for bug #166406 stopped using a lookup
> > table called ctable. This was because it slowed things down a lot fo
Winston Chang wrote:
> Dang. I wish I knew that before I coded up the box blur...
>
> Does this mean that I would have to code up a new plugin from scratch,
> or is there a GEGL version of it out there already? (Sorry, I'm
> totally unfamiliar with this GEGL stuff.)
Gegl has a "gegl:unsharp-mask"
Dang. I wish I knew that before I coded up the box blur...
Does this mean that I would have to code up a new plugin from scratch, or is
there a GEGL version of it out there already? (Sorry, I'm totally unfamiliar
with this GEGL stuff.)
-Winston
On Thu, Jan 15, 2009 at 1:43 AM, Martin Nordholts
Winston Chang wrote:
> I took a look at the svn history of unsharp-mask.c (I'm the original
> author) and saw that the fix for bug #166406 stopped using a lookup
> table called ctable. This was because it slowed things down a lot for
> large values of radius, due to cache overloading.
> http://bugz
>
> Also, I've read recently that a three-pass box blur is close to a true
> gaussian blur (within 3% when std_dev>2.0) so I'm considering implementing
> that for the unsharp mask. It should be much faster while still looking very
> good.
>
> More info on the 3-pass box blur here:
> http://www.w3.o
