On mardi 31 janvier 2017 02:56:08 CET Marcus Sundman wrote: > On 30/01/17 22:01, johannes hanika wrote: > > hi, > > > > On Tue, Jan 31, 2017 at 5:42 AM, Marcus Sundman <[email protected]> wrote: > >> On 30/01/17 10:13, johannes hanika wrote: > >>> hi, > >>> > >>> i suppose you've seen this > >>> > >>> http://www.darktable.org/2016/05/colour-manipulation-with-the-colour-che > >>> cker-lut-module/ ? > >> > >> "to interact with the colour mapping, you can change both source and > >> target > >> colours. the main use case is to change the target colours however, and > >> start with an appropriate palette" > >> > >> However, I want to do the opposite. I want to start with an appopriate > >> target palette (the xrite color checker card) and then pick the source > >> colors from the picture. > > > > more specifically i meant the second half of it, about the darktable-chart > > tool. > That is insanely complicated and time-consuming, involving multiple GUI > tools as well as command line commands, generating ICCs etc. Imagine (...) > > And if there was a way to choose the whole palette at once (just mark > the 4 corners of the palette in the picture, like you do in the xrite > tool) it would be virtually as quick as the normal white balance. And if > this tool would manage to find the palette by itself (like the xrite > plugin does) then it'd be even faster than the normal white balance tool!
Have you tried using a white balance target, and the spot setting for the white balance module? IMO that should give you the result you want, with less hassle than the color target. I don't see what you expect to gain from using a 24-patch colour target (which should be lit evenly btw., not like in the sample image you posted) instead of a white balance target (and using the "spot" option in the WB module in DT, of course). The more so since 24 patches for a LUT profile (which is what you propose to make) is not recommended (the profiles generated from such targets are matrix profiles) Remco ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
