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How to Use a Color Checker or Xrite Passport Checker

Paul Spatafora
I might be shooting some color sensitive products and I was researching how I can use one of these color checkers but I couldn't find any real info. Is there a way to or technique to use them in C1? It seems that their software is LR friendly but not C1.

Any help, or guidance would be great!

Thanks in advance.

Paul
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  • Michael Heller
    Lumariver will sell you software that can process the color checker photo into an ICC profile you can use in C1.

    http://lumariver.com/#DownloadLumariverPD
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  • Paul Spatafora
    Wow! I just read the C1 section of the software manual that was suggested and I didn't realize that a C1 doesn't have the capability to easily use the color checker tool profiles. The process for just one setup seems like a lot of work, and very impractical to use as an on going tool. Very disappointing, because it looks like I'll have to use LR when I'm working on color accurate subjects 😐

    Maybe there is something else that someone might know.

    Thanks in advance.

    Paul
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  • Michael Heller
    Ya, the datacolor plugin makes it easy to create a DNG profile for LR. It takes some work to get it working in C1 though, plus the added cost of the profiler software (not cheap).
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  • Paul Spatafora
    For a high end expensive software program, C1 just disappointed me!
    Is there another technique, or tool to use in conjunction with C1 to get accurate colors for product photography, such as the Datacolor Cube?

    Paul
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  • HansB
    I'd turn this around:

    The official standard of color profiles is icc, and CO uses them.
    Why is X-Rite's Color Checker only creating Adobe's DNG profiles?

    The answer is on X-Rites Color Checker website.

    I'm not happy about it, but I decided to go with the Lumariver Profile Designer. The results are excellent, and profiles easy to create and save. I haven't tried to modify profiles to achieve a certain look yet, but I'm going to try.

    LPD is based on a free command line tool tool, DCamProf. Maybe something to try? I admit, I didn't.

    Nevertheless, I think X-Rite should reconsider their Color Checker approach. And they surely know how to make an icc profile.


    Regards,
    Hans
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  • Sandy Lunitz
    Hello Hans,

    which version of lumariver profile designer do you work with?

    Thank you!
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  • HansB
    You need at least 'Pro' to create icc profiles for CO. I decided to go with 'Repro' as it had a nice discount when I bought it. Possibly overkill long term, but I'm curious to try a couple of things I may not be able to do with 'Pro'. Current version, 1.04.

    The LPR manual has a chapter on how to use it with CO.
    It reads more difficult than it actually is. 😄


    Regards,
    Hans
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  • Paul Spatafora
    I got a reply from Datacolor regarding using their color checker and software with C1. I asked why they would support Phocus software and not C1 which has a much larger user base. They replied that if they got more interest from C1 users, they would seriously consider integrating their software with C1.

    I would suggest we all go to www.datacolor.com and ask for their color checker integration with C1. We should do it with Xrite and well.

    Let's do it!

    Paul
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  • Permanently deleted user
    I'd like to share the method I use to deal with this. Some of you are familiar with it already if you've researched it. I use CoCa software. It's free, and now incorporates the Argyll software that's needed to make it work. Here is the link: http://www.dohm.com.au/coca/downloads/coca_version.htm

    Download and run the setup.exe.

    In C1, crop the image of the colorchecker the way you would have in the xrite software. Correct perspective if you didn't shoot it straight on. Rotate if needed.
    The process recipe should be set up to create a 16 bit uncompressed TIFF.
    Select Embed Camera Profile in the ICC profile pull-down.

    Be sure the colorchecker target is correctly exposed. This system does not seem as robust as Lightroom/X-rite when it comes to exposure errors. I crop it so that it's just the 24 patches, not the whole passport. It's all that's needed.

    Open CoCa and load the TIFF you exported from C1. (Target Image)
    Choose "Generic" for Reference File and select "Xrite ColorChecker (24 patches)" in the pull-down.
    Choose "Xrite ColorChecker 24 patch" in the Select Target Type pull-down. It displays a thumbnail that should match what your TIFF looks like.
    Enter the profile information. None of this is really necessary. You'd think that the "Internal Profile Description" will be the name of the profile but when you create the profile, but you still need to actually give it that name. Copy and paste from here. More on this later...

    Under Options, Leave the default algorithm at Gamma+matrix. Or experiment and see what happens.
    I use Relative Colorimetric as the Default Intent
    For the Quality, I've been using "Ultra High". The CoCa information states that Argyll says that this should almost never be used. Maybe it was to calculation intensive years ago, I don't know. I have a modern computer and it works just fine. Experiment and see if it makes much difference, I think it did.

    Create the profile. Some DOS screens will flash by and you should be able to tell if it was unsuccessful. If it is not successful, the problem could be exposure, clipping, or cropping. Experiment to figure it out. Works most of the time for me.

    When prompted, save the profile where the other camera profiles are saved for C1, in: Program Files\Phase One\Capture One 11\Color Profiles\DSLR

    Here's an example of how I name them that includes the important information:
    SonyA7RM2-85mm ISO 100 @ 9900K

    Note that the first part of that name, specfically "SonyA7RM2-" is needed for the profile to show up when you select your camera in C1's ICC Profile pull-down. If you don't include this part, you can't use the "Show only recommended" feature and you'll have to scroll to the "Other" menu of profiles that are unassociated with an camera. That's a headache. If you go to the Program Files\Phase One\Capture One 11\Color Profiles\DSLR folder, you'll see this nomenclature in use.

    I did a comparison between the results I got in Lightroom/X-rite and the method I described here with Capture One/CoCa. First, The Lightroom/X-rite is much easier to use and more robust. I wish we had this easy solution in Capture One. However, the results are extremely close and I've always liked what I got from Lightroom/X-rite.

    In my test, Lightroom/X-rite gave a more yellow cast, and I have to say that the Capture One/CoCa images had more accurate skin tones, (cooler) But we often like to warm it up some with white balance. Beyond that, the rendering the Capture One made was far better than Lightroom on my Sony images, resolving skin wrinkles, eyeballs, eye lashes, and fine hairs with better detail. Lightroom's noise reduction and sharpening are no where near as good as Capture One's, and I was very pleased with the detail.

    Hope this helped 😄
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