How to begin ?

[Torsten Rahn]

> > Not really. I've found few books that specifically deal with 2D
algorithms,
> > and I must be reading the wrong journals. So what I know, I know from
the
> > source of the Gimp and websites like
> > http://astronomy.swin.edu.au/~pbourke/colour/bicubic/. I notice that
> > applications like Photoshop offer a choice between a 'fast' and a
> > 'best' (where best is described as bicubic) scaling, but for the life of
> > me, I have never been able to discover any difference in performance,
> > although the difference in quality is clear.
>
> There is a chapter about interpolation in two or more dimensions in
> "Numerical Recipes" which also covers bicubic interpolation. I will be on

What about less classical methods?

http://www.americaswonderlands.com/digital_photo_interpolation.htm

Are there any docs about those?

Greetings,
Torsten Rahn


> vacation from tomorrow to sunday, maybe I will find some time to read
this.
> Which files in the source of the GIMP are the relevant ones for bicubic
> interpolation? Do you by chance have them on-hand and can mail them to me?
> Then I could take them with me on my trip.
>
> I saw that there are dialog boxes to resize or scale an image or an layer,
> but they are doing nothing, currently. There is also some code in
> kis_paint_device to scale an image. Is this code actually working?
>
> Is the work on the iterators finished?
>
> > I work in the checked out code for Krita -- changing the files in the
> > result of 'cvs co koffice'. If you haven't got KDE cvs commit access,
you
>
> O.K., I thought there is some fancier method like checking out the files
from
> the local cvs copy and checking them in again, so that you can easily go
back
> to the previous version in case something breaks. But working on the
result
> of cvs co koffice will do, I guess.
>
> Greetings,
> Michael
> _______________________________________________
> kimageshop mailing list
> kimageshop at kde.org
> https://mail.kde.org/mailman/listinfo/kimageshop