[Digikam-users] How to add a vignette?

[Andi Clemens]

But wouldn't it then be an effect? Not a correction?
So actually this should be a different menu entry... 

Andi

On Thursday 20 November 2008 07:55:18 Gilles Caulier wrote:
> 2008/11/20 Arnd Baecker <arnd.baecker at web.de>
>
> > On Wed, 19 Nov 2008, Martin wrote:
> > > On Wed, 19 Nov 2008 19:18:02 -0000, Arnd Baecker <arnd.baecker at web.de>
> > >
> > > wrote:
> > > > On Wed, 19 Nov 2008, gerlos wrote:
> > > >> Hello everyone!
> > > >> Does anybody know how to *add* a vignette or to darken borders in
> > > >> digiKam? Or I have to use Gimp for these things?
> > > >>
> > > >> I'm using digiKam version 0.9.4.
> > > >
> > > > For 0.9.5 from svn (and I think for 0.9.4 as well),
> > > > Image Editor/Enhance/Vignetting Correction
> > > > might do what you want.
> > > >
> > > > Best, Arnd
> > >
> > > The vignetting tool seems to be just for correcting unwanted vignetting
> >
> > ie
> >
> > > it lightens borders. I can'r see any way of reversing it so that it
> > > adds vignetting by darkening borders.
> >
> > Yes, you are right....
> >
> > Actually, when playing around with it, I observed two issues:
> > - negative radius: does not seem to have any effect?
> > - when pressing "Defaults", the view is not updated.
> >
> > To come back to the originial question: For adding vignette,
> > could this be realized by extending the range of any of the sliders
> > (e.g. a negative density?) or do we need a checkbox
> > for this "inverted" purpose?
> >
> > Unless there is a way to add vignette in some way,
> > could you please file a new wish in the bug-tracker so
> > that it is not forgotten?
>
> Arnd,
>
> yes, it's possible to add vignetting with current algorithm from this tool.
> I have just limited slider for that, because... i cannot see why a
> photograph want to _add_ vignetting to an image.
>
> So it's a 5 mns fix to do (:=)))
>
> Gilles