New color conversion system

[Kai-Uwe Behrmann]

> Date: Thu, 20 Sep 2007 10:48:50 +0200 (CEST)
> From: Boudewijn Rempt
 
> On Thu, 20 Sep 2007, Cyrille Berger wrote:
> 
> > So what do you think guys ?
> 
> Maybe it's also useful to ping Kai-Uwe to find out how he solved
> this for Cinepaint (which also includes tonemappping now, if I
> remember correctly)?

CinePaint don't has such. It sits on lcms, and I am tired to glue all 
those hacks together. Could never fullfill realy good. My hope was Glasgow 
to start something new and clear.

Tonemapping in CinePaint? 
Cyrille should have the last say with his SoC project mentorship. Any 
news?

I know you think about Pigment being a cool C++ library. Is Pigment just a 
prototype or already used?
Or in other words, could you turn you shoes slightly to direct to 
simple C.
I expect it would more easily fit in a open source CMM framework.
A floating point CMM together with lcms and argyll's libicc would be cool.

If you plan only for KDE so be it.

> Date: Thu, 20 Sep 2007 10:20:04 +0100
> From: Moritz Moeller <mnm at dneg.com>
 
> Speaking of Cinepaint: are there ant plans to take its awesome 
> Bracketing-To-HDR plug-in and make it part of Krita 
> (http://freenet-homepage.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html)?
 
Oh, he will enjoy to read.
Why dont ask the author himself? I imagine he could build a Krita a 
plug-in? This would keep the code in one hand.

> Not plan. Action allready done ;) It's based on [1]. Which means it's a 
> step-by-step optimization process and is much slower than what it is on 
> cinepaint, which is I think based on a variation of [2] (I might be wrong). 
> But I have found the results with [1] to look better than with cinepaint. 
> What I am thinking is to use a similar method as in cinepaint to get a first 
> estimate of the curve, and then apply the optimization process.
> 
> [1] http://www.mpi-inf.mpg.de/resources/hdr/calibration/pfs.html 
> [2] http://www.debevec.org/Research/HDR/debevec-siggraph97.pdf
 
Ah, so it seems already done.

kind regards
Kai-Uwe Behrmann
--
developing for colour management 
www.behrmann.name + www.oyranos.org + www.cinepaint.org