I see, thanks. I was under the impression that it was normal to do the full calibration once per scene/lighting setup, but looking around some more I guess it's typical just to generate a profile once for the camera and reuse it. I'll go ahead and use the chart tool to generate one for mine :)
On January 25, 2018 12:41:08 AM PST, johannes hanika <[email protected]> wrote: >hi robert, > >you can use the colour lut module to calibrate to a checker. you'd use >the darktable-chart utility to create a style for you. > >there's some very short example about half way through this: > >https://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/ > >and if you want a full lut, you may actually do it a bit differently >(and leave away the white balance and camera matrix processing for the >input?). > >let me know how you go with this, we might be able to help you with >details (or fix workflow issues in the iop or the darktable-chart >utility). > >cheers, > jo > > >On Thu, Jan 25, 2018 at 7:23 PM, Robert Bieber <[email protected]> >wrote: >> I've gotten my hands on a proper color checker recently, and I wanted >to try >> using it with the color look up table module to correct the colors in >an >> image. If I'm understanding it correctly though, it seems like the >module >> is the opposite of what I need for this process? >> >> If I have it right, you can use the color picker to select colors >from the >> image to set as a source, but then you have to manually adjust them >to get >> the target color you want from that source. Shouldn't it be the other >way >> around, though? Picking the actual colors captured in the image as >the >> source, and automatically setting the target value to be the known >color of >> the chart? >> >> Am I just fundamentally misunderstanding what this module is for? >And if so >> is there some other one that could do what I'm looking for? >> >> Thanks, >> Robby >> >> >____________________________________________________________________________ >> darktable user mailing list >> to unsubscribe send a mail to >[email protected] >> >____________________________________________________________________________ >darktable user mailing list >to unsubscribe send a mail to >[email protected] -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
