it would be really fine, if we could realize something like LUE for nuke as a natron addon. this would be really helpful, not least because LUE doesn't work faultlessly in nuke non-commercial, because of some python restrictions of the free edition.
but i'm in doubt, if it really makes sense to utilize natron for color correction?
i also think, it's very important, to have a lot of context information and usefull opportunities to visible compare sets of shots while grading. that' very well implemented in davinci resolves gallery view IMHO. for a strict single shot centered application, which doesn't have any more powerful timeline concept up to now, this looks quite unfeasible. but on the other hand, i also would really like to see this kind of high quality color related processing in the free software world. maybe natron could be used in the meanwhile just as kind of plugin for other existing free NLEs for this particular purpose...
yes -- i also did some experiments, to archive this goal, but i never find time to polish the code and refine it for useful sharing. but at least as a stimulating advice: take a look at the really fast and hardware neutral acceleration capabilities for histogramm calculations, color space conversions, and reorder trickery in ArrayFire for this purpose.