In my photo processing workflow I use Darktable to handle the CR2-to-TIFF/JPEG conversion, however I frequently struggle with getting the colors right. As the first step toward correct colors I am using a grey card to get an idea about white balance, but I wanted to go a step further and start getting a color profile.
My understanding of the process is that I get myself a (physical) IT8 target from some manufacturer, like Wolf Faust; they supply me with the printed target and a set of values specifying the calibrated color values for all the patches on the target. The process is then similar (in spirit) to using a grey card: I need to take a photograph of the IT8 target each time lighting conditions change.
Assuming the above description of camera profiling is correct, given a photograph of the target under the same lighting conditions as the photographs I want to color correct, how do I create a camera profile under Linux?
What software tools and in what way should I use? Can someone recommend a blog post/tutorial describing the process?
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