Re: [Gimp-developer] Cubic Interpolation vs No Halo

[C R <cajhne gmail com>]

Are there plans to fix the cubic interpolation so it doesn't toss away
quite so much resolution?
It seems to me it didn't do that quite so much before.

-C



On Fri, Apr 29, 2016 at 12:34 AM, Liam R. E. Quin <liam holoweb net> wrote:

> On Fri, 2016-04-29 at 00:59 +0200, Nicolas Robidoux wrote:
> > Liam:
> >
> > Do you ever find LoHalo (snail crawling notwithstanding) worthwhile?
>
> Yes, but because it's so slow I use it less than once a month.
>
> It feels like it takes half an hour or so, but I suspect it's probably
> more like 10 minutes.
>
> Most often I'm working with scanned engravings that have lots of
> almost-parallel almost-horizontal lines, and the trouble is moiré-like
> patterns that creep in. A gaussian blur before down-scaling, followed
> by a sharpen, usually helps. We lost the old gimp 2.6 sharpen filter,
> but the newer unsharp filter works.
>
> Sometimes lohalo scales down without introducing the problems.
>
> Liam
>
>
> --
> Liam R. E. Quin <liam holoweb net>