We have taken the necessary images of the ColorChecker Passport Photo, created our process recipe for the output and familiarised ourselves with the Capture One naming conventions, it’s time to move to the next step.
In case you want to re-read the prerequisites have a look at the last article How to create ICC profiles for Capture One – Part 2 now.

Preparing the images

I would recommend following these steps to adjust the image. Use the „Add Colour Readout“ feature of Capture One to make your life easier.

  1. Apply LCC, depending on the used camera and lens this might help to remove the colour cast and get a more evenly lit image
  2. Set the white balance, use one of the grey patches at the bottom of the ColorChecker Passport Photo. Once you have done this the RGB values for the channels should be all the same.
  3. Set the exposure, small positive values are fine. If you have to go too far, you should adjust the power of your strobes.
    Recommendations for the profile maker software with curve set to „Linear Response“:

    Software RGB White Patch
    ColorChecker Passport n/a
    basICColor input 5 245 – 250
    Lumariver Profile Designer around 220
    DCamProf and Argyll around 220

    As there is no recommendation from x-rite for the ColorChecker Passport software, I would suggest using the same values as for Lumariver Profile Designer.

  4. Depending on your image size you might need to crop the image. The only information required by the profile maker software is the ColorChecker Passport Photo target. On Microsoft Windows you might have file size restrictions, at least x-rite recommends to make sure that the TIFF file is no larger than 150 MB.

What next?

The next steps are depending on the profile maker software. I will cover them in individual articles for each of the profile makers.