Darktable and X-Rite ColorChecker Camera Calibration Software

Hi, I’m going to buy the X-Rite ColorChecker to spend less time getting accurate colors for each photoshoot. I wonder if It’s possible to adapt the Capture One workflow for Darktable using the ICC profiles generated from exported TIFs by X-Rite’s ColorChecker Camera Calibration Software like described in this tutorial https://youtu.be/3DsrO6u9iWg
Ok, I can make the base curve linear (or do I need to disable it?) and turn off the highlights reconstruction module. However I don’t understand well what does the ICC color profile named “Without Color Correction” in Capture One. I see there is input color profile module in Darktable with sRGB, Rec709, Rec2020 and etc. Which setting would correspond? Do I need to adjust the white balance and exposure using the grey section on the ColorChecker? Are there any additional steps required? Thanks for any advice!

the darktable way: https://pixls.us/articles/profiling-a-camera-with-darktable-chart/

An old way dealing with icc profiles: https://encrypted.pcode.nl/blog/index.html%3Fp=594.html

A more illustrated description: https://tomassobekphotography.co.nz/articles/create-camera-input-profile-with-ColorChecker-Passport.php


There’s quite a lot of material about input profiles / camera calibration in this forum. It’s often quite complicated! I’m fairly new to darktable and recently asked about this here - Camera input profiles in darktable

Thanks! After I did research the old way dealing with ICC profiles it seems that the workflow in general is similar to Capture One and X-Rite ColorChecker Camera Calibration Software workflow. Both approaches generate ICC profiles from flat white-balanced 16-bit TIF files. The difference is that the latter approach is more straight forward to create calibration profiles on the fly when developing RAWs for each shoot for constant color accuracy.
Wonder if there are any GUIs for ArgyllCMS to generate ICCs faster with few clicks so I can manage my workflow without a Windows machine.

I wrote a simple bash script to run the two ArgyllCMS programs needed to produce a camera icc file from a target shot of a ColorChecker:


scanin -dipn -v -G1.0 -p $1.tif /usr/share/color/argyll/ref/ColorChecker.cht /usr/share/color/argyll/ref/ColorChecker.cie
colprof -v -am -u -C"No copyright, use freely." -O$2.icc -D$2 $1

Use it something like this:

$ ./cam.sh <infilename_withoutextension> <outfilename_without_extension>
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@MStraeten Martin thanks for sharing the links…all high quality…what is your opinion on processing the target to produce a DT Style vs an ICC file?? So I guess Darktable chart vs Argyll??

In my experience the icc way is better if you want to get ‚real‘ colors, the dt chart style approach is better to match camera presets. i never was able to get satisfying results using darktable chart with referencing the cie file …

The dt chart approach requires the use of tonecurve to get proper colors and so it‘s not the best way if used in a filmic workflow (out of the box RAW rendering not up to JPEGs)

Thanks for your perspective. I appreciate you taking the time to reply…

with Argyll you can use DCamProf http://rawtherapee.com/mirror/dcamprof/dcamprof.html to fine-tune or make a better ICC Profile