I am using ColorChecker Camera Calibration v2.0 in combination with Colorchecker Digital SG achieving the most colourimetric accurate colours. At the moment the software is using the values given by the ColorChecker manufacturer (X-Rite). But I have profiled all the patches of the target using a colourimeter and I would like to use those values instead. I can't find a way to do that searching on the internet. Is there any way I can access and modify the reference values of the targets?

If you are not used to scientific photography please read the description of why I need this at the following link (archived copy). My question is simply: how can I do that with ColorChecker Camera Calibration software instead of i1Profiler as I do now.

  • When you say, "for calibrating my images" exactly what do you mean? Calibrating so that the colors output by your printer are as close to possible to the colors you see on your screen? Calibrating so that a photo of a "white" or "neutral gray" object appears "white" or "neutral gray" on your screen? Calibrating your screen so that a white or neutral grey screen output appears white or neutral gray to your eyes in the viewing environment you are in? Creating a camera profile?
    – Michael C
    Mar 15 at 7:17
  • Re: "values given by the manufacturer". What manufacturer? Of the camera? X-Rite? Your monitor? Your printer?
    – Michael C
    Mar 15 at 7:20
  • @MichaelC thanks for your feedback I have updated the question for making it more clear. In photography sometimes color tagets can be used for achieving more accurate images these target are used for creating profiles based on color of some reference patches
    – G M
    Mar 15 at 7:26
  • @G M You're still assuming I can tell which step in the image processing chain you have in mind. If you are trying to create camera color profiles, that really can't be described as "calibrating your images" so much as it can be described as calibrating your raw conversion software's demosaicing algorithms to match your camera's color response characteristics.
    – Michael C
    Mar 15 at 8:33
  • 2
    I think your question would be improved by: 1. Describing the reasons the manufacturer's values are unsuitable for your purpose; 2. Describing the variations of the colorimeter's values from the manufacturer's values; 3. Describing how you determined the manufacturer's values. These will help because it is non-obvious how to help you without some context. Particularly because the X-rite color checker system is a photographic industry standard with a long track record. Designed to work with most photographic workflows. Designed to solve photographic problems. There's a clear one described here. Mar 15 at 19:01

The manufacture (X-Rite) provides instructions on their site. This link might be helpful. https://www.xrite.com/-/media/xrite/files/apps_engineering_techdocuments/c/custom_reference_data_en.pdf

Further information may be available from X-Rite staff. Contacting them is recommended if public facing information is inadequate.

  • Thanks but this it is only for i1Profiler software and is what I am doing now(see question), but you can't build DNG profiles.
    – G M
    Mar 17 at 6:57

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