This is what I thought was a bug (I posted
herehttp://bugzilla.gnome.org/show_bug.cgi?id=432978) but Sven Neumann
says I should discuss it on here first.
Basically I've found that blurring an image with the blur tool in
2.3.15 darkens it as well as blurs, but only if there is a darker
colour invol
On 25/04/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> On Tue, 24 Apr 2007 20:57:43 +0200, Sven Neumann <[EMAIL PROTECTED]> wrote:
>
> > Hi,
> >
> > On Wed, 2007-04-25 at 02:41 +1000, Jasper Schalken wrote:
> >> This is what I thought was a bug
> Your video shows the blur tool being used on large areas of black color
> and small areas of white color. The average of this is a dark gray. Now
> when you continue to blur, you are mixing a dark gray with black. If you
> go further, you end up with all black.
Well yes that's valid for the one
> Why do you say that? Does it still favour dark colours if the image is
> predominantly white?
Yes it does. Blurring a white spot on a black image erases the white
spot. Blurring a black spot on a white image makes the black spot
bigger.
I have just tested 2.2 and it also suffers from this. Phot
ced the rounding errors in our blur plug-ins today. The
> > results are a lot more stable now, even after multiple iterations.
> >
> >
> > Sven
> >
>
> Excellent work! I just reran my test case (which was centred on the b/w
> boundry in the middle
from SVN?
On 27/04/07, Sven Neumann <[EMAIL PROTECTED]> wrote:
> Hi,
>
> On Fri, 2007-04-27 at 15:59 +1000, Jasper Schalken wrote:
> > So this is fixed in cvs? For the tool, plugins, or both?
>
> We aren't using CVS any longer (for a few months now). If you want to
&
Yep, you fixed it good!
However, some artefacts appear when blurring near the edge of the
image. It seems to blur/spread even further:
http://schalken.wubbles.net/gimpblurnearedge.ogg
On 28/04/07, Sven Neumann <[EMAIL PROTECTED]> wrote:
> Hi,
>
> On Fri, 2007-04-27 at 22:0
> I presume you are saying that there is some difference with the new
> version.
No this was present in the previous version, however trivial in
comparison to the darkening bug.
> Perhaps a more explicit description would be helpful if a couple
> of sentences could save us downloading a movie. It
ur at all. Only blur with pixels that do exist.
But someone should have a look at the code before I take my
assumptions/theories too far. I will have another look and see if I
can understand what it is doing.
On 28/04/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> On Sat, 28 Apr 200
> You could have a look at the matrix convolution filter code. (Be warned
> there are some minor bugs concerning edge effects IIRC) but it will serve
> as an introduction to the different ways of treating edge data.
Is that "void convolve_region(...) {...}" in
/gimp/trunk/app/paint-funcs/paint-fun
The bug report: http://bugzilla.gnome.org/show_bug.cgi?id=434279
On 29/04/07, Jasper Schalken <[EMAIL PROTECTED]> wrote:
> > You could have a look at the matrix convolution filter code. (Be warned
> > there are some minor bugs concerning edge effects IIRC) but it will serve
>
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