Understanding results

Home Forums Help and Support Understanding results

This topic contains 8 replies, has 2 voices, and was last updated by  Florian Höch (@fhoech) 5 months, 1 week ago.

Viewing 9 posts - 1 through 9 (of 9 total)
  • Author
    Posts
  • #15111

    SilviuT (@silviut)
    Participant
    • Offline

    Hello,

    I have troubel understanding the results of my calibration with different correction profiles.

    I have a ColorMunki Display and a Dell S2417DG.

    Target whitepointis 6500K. And I am using the extended chart for verification. These are the results with various correction profiles:

    With the Correction set to None:

    Measured vs. assumed target whitepoint  0.23
    Measured vs. display profile whitepoint  0.1
    Average ΔE 0.33
    Maximum ΔE 1.09
    Gamut volume 1.085
    Gamut coverage sRGB 94.1%
    Gamut coverage DCI-p3 75.96%
    Gamut coverage AdobeRGB 69%

    With Correction set to LCD White LED IPS:

    Measured vs. assumed target whitepoint ΔE*00 0.48
    Measured vs. display profile whitepoint ΔE*00 0.46
    Average ΔE*00 0.96
    Maximum ΔE*00 1.74
    Gamut volume 1.089
    Gamut coverage sRGB 94.67%
    Gamut coverage DCI-p3 75.98%
    Gamut coverage AdobeRGB 69.3%

    With Correction set to Matrix: i1 Display Pro <…> by 4KM v2 (https://colorimetercorrections.displaycal.net/?get&type=ccmx&manufacturer_id=DEL&display=Dell%20S2417DG&instrument=i1%20DisplayPro%2C%20ColorMunki%20Display&html=1):

    Measured vs. assumed target whitepoint ΔE*00 0.66
    Measured vs. display profile whitepoint ΔE*00 0.44
    Average ΔE*00 0.89
    Maximum ΔE*00 1.62
    Gamut volume 1.0723
    Gamut coverage sRGB 93.66%
    Gamut coverage DCI-p3 75.39%
    Gamut coverage AdobeRGB 68.55%

    To me it seems that the calibration with the correction profiles is far worst than with None. Am I reading this wrong?

    ColorMunki Display on Amazon   i1Display Pro on Amazon  
    Disclosure: As an Amazon Associate I earn from qualifying purchases.

    #15113

    Florian Höch (@fhoech)
    Administrator
    • Offline

    Hi,

    you have to use the exact same colorimeter correction during verification that was used to calibrate & profile. Have you done that?

    #15115

    SilviuT (@silviut)
    Participant
    • Offline

    Probably not. Was it under the device link profile? That thing only accepts ICC and icm profiles. The correction on Display & instrument I never change after a calibration. I also do the verification immediately after calibration.

    #15122

    SilviuT (@silviut)
    Participant
    • Offline

    Can you please explain how can I check what colorimeter correction is being used during verification?

    #15133

    Florian Höch (@fhoech)
    Administrator
    • Offline

    Can you please explain how can I check what colorimeter correction is being used during verification?

    You set the colorimeter correction on the “Display & instrument” tab. If you select an existing profile under “Settings”, it will automatically set the correction that was used for the profile.

    You can see which correction was used in the report as well.

    #15155

    SilviuT (@silviut)
    Participant
    • Offline

    Ok, I checked the reports, and yes, during the verification I had the exact same colourimeter correction as during the calibration.

    So does this mean that the calibration without any colourimeter correction is better than the other two?

    • This reply was modified 5 months, 1 week ago by  SilviuT.
    #15179

    Florian Höch (@fhoech)
    Administrator
    • Offline

    So does this mean that the calibration without any colourimeter correction is better than the other two?

    It seems so, although this is a very peculiar result.

    #15187

    SilviuT (@silviut)
    Participant
    • Offline

    Thank you very much! Could it be an indication of a possible bug? If you think so, I will open another thread. Otherwise, we will leave it as is.

    #15189

    Florian Höch (@fhoech)
    Administrator
    • Offline

    Thank you very much! Could it be an indication of a possible bug?

    No.

Viewing 9 posts - 1 through 9 (of 9 total)

You must be logged in to reply to this topic.

Log in or Register

Display Calibration and Characterization powered by ArgyllCMS