Scaling algorithms in Krita Bad (at least at downscaling)

[Carsten Pfeiffer]

On Friday 10 November 2006 23:55, Bart Coppens wrote:
> A blog about _downscaling_ producing noticeably worse results than The
> Gimp:
> http://gis-blog.leonde.de/index.php/2006/11/10/scaling-algorithms-in-krita/
> (wondering why he didn't bugreport that, though.)

I wanted to see what the community's opinion and experience on all those 
different algorithms is and also pass on those experiences to other krita 
users.

One comment says:

"As far as I know, cubic scaling is the best choice for scaling up and linear 
scaling is the best choice for scaling down. In fact, cubic scaling is 
superior in any case, but when scaling down, you won’t see the difference."

So maybe there could be a label showing such suggestions, depending on the old 
and new size.

Another comment mentions that it might be that the parameters of the Lanczos3 
filter aren't set correctly, causing the blurriness. It also contains some 
more hints and references, that might be helpful.

Cheers,
Carsten
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