noise generators (forked from: Krita user community?)

Cyrille Berger cberger at
Wed Feb 27 09:04:48 CET 2008

On Wednesday 27 February 2008, Matthew Woehlke wrote:
> Cyrille Berger wrote:
> > On Tuesday 26 February 2008, Matthew Woehlke wrote:
> >> Hmm... this is making me want to add an LMS color-reduction filter to
> >> the TO-DO (or do we already have that ;-)?).
> >
> > No we don't have. We used to have a LMS color space which I was supposed
> > to use for that kind of applications, but while I have some unfinished
> > code for this filter somewhere on my computer, I never found the time to
> > finish it, and the code is probably dead now, as is the LMS color space
> > :/
> Hmm... I have RGB<->LMS converters... converting to/from other color
> spaces would be harder, though (but not much, assuming matrices are
> available).

Well LMS<->XYZ and LMS<->LAB matrices are available. For the other color 
space, pigment (our color manipulation system) will take care of it.

> It'd be too bad though not being able to have dichromacy presets. What
> are the chances of reviving LMS some time down the line?
Oh but very high. It's not an hard job, as soon as there is a need for it, I 
can do it in around an hour.

Cyrille Berger

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