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 <d...@biebersprojects.com> 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 darktable-user+unsubscr...@lists.darktable.org > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
