Help with greyed blacks when calibrating for sRGB

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  • #34238

    Kirs90
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    Hello, I’m new to this calibration thing, but I’ve tried to learn as much as possible before getting my i1Display Pro Plus and get to work.

    Sorry if thins have been asked already, but I cant seem to find a solution for this anywhere.

    The problem: Greyed and washed out blacks when I try to make an icc profile for my monitor.

    It’s a curved 27” 240Hz LED Samsung monitor. I tried all the LED color corrections for the colorimeter, but all of them messes the blacks.
    The only way to not mess them up is to not choose any color correction.

    I calibrate for default srgb, 2.2gamma, d65 cardinality, all other settings at their default (contrast, black and white levels at native).

    There’s no missmatch between limited or full rgb, and dynamic processing on the monitor. Yet I dont know why this happens.

    Am I missing something?

    Thanks : )

    • This topic was modified 4 years, 3 months ago by Kirs90.

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    #34256

    Vincent
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    -verification report + profiles

    -it is very possible that it is behaving properly and all is OK. Colro managed sRGB dark greys are brigther than 2.2g non color managed.

    #34280

    plundh
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    I think I have a similar issue – please let us know if you figure out what the problem is.

    #34282

    Vincent
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    Same answer for you

    #34317

    Kirs90
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    -verification report + profiles

    -it is very possible that it is behaving properly and all is OK. Colro managed sRGB dark greys are brigther than 2.2g non color managed.

    I think I have a similar issue – please let us know if you figure out what the problem is.

    Indeed. My bad was following the advice of some random on youtube saying that for web and normal use, monitors should be calibrated to sRGB profile.

    Calibrating for 2.2 gamma with White LED correction did the trick!

    Sorry for bothering : )

    #34367

    Алексей Коробов
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    monitors should be calibrated to sRGB profile

    You can do it with studio class displays. But regular display can only be calibrated to its full color coverage or it can be calibrated being in some (non perfect) emu mode like sRGB. Yes, you can choose different gamma laws for profile before calibration, but this is not too valuable. The key thing is profile support in applications. Tha alternate way is building a LUT that links your display ICC profile and sRGB profile, then use DWM_LUT tool, this works almost like studio displays, the price you pay is some speed fall and tolerance issues.

    #34370

    S Simeonov
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    #34371

    Vincent
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Actually if you have a iGPU connected to a widegamut monitor without HW cal (or with faulty HW cal like Dells or Benqs or Asus…) it is the way to go for photo edition. Simulate an idealized version of monitor’s native gamut witha LUT3D, set that idealized native gamut profile as display profile. Result => no banding due to calibration, all smooth.

    #34372

    S Simeonov
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Actually if you have a iGPU connected to a widegamut monitor without HW cal (or with faulty HW cal like Dells or Benqs or Asus…) it is the way to go for photo edition. Simulate an idealized version of monitor’s native gamut witha LUT3D, set that idealized native gamut profile as display profile. Result => no banding due to calibration, all smooth.

    Then how you will deal with photoshop, madvr, irfanview and firefox?

    #34373

    Vincent
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Actually if you have a iGPU connected to a widegamut monitor without HW cal (or with faulty HW cal like Dells or Benqs or Asus…) it is the way to go for photo edition. Simulate an idealized version of monitor’s native gamut witha LUT3D, set that idealized native gamut profile as display profile. Result => no banding due to calibration, all smooth.

    Then how you will deal with photoshop, madvr, irfanview and firefox?

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Simulated colorspace = “source profile” in LUT3D.

    #34374

    S Simeonov
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Actually if you have a iGPU connected to a widegamut monitor without HW cal (or with faulty HW cal like Dells or Benqs or Asus…) it is the way to go for photo edition. Simulate an idealized version of monitor’s native gamut witha LUT3D, set that idealized native gamut profile as display profile. Result => no banding due to calibration, all smooth.

    Then how you will deal with photoshop, madvr, irfanview and firefox?

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Simulated colorspace = “source profile” in LUT3D.

    I have calibrated my monitor with XYZ LUT profile, so I should choose the sRGB IEC61966-2.1 as default monitor profile?

    #34375

    Vincent
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    DWM LUT is not a complete solution. You can’t use it with all color managed programs, cause it is applied twice.

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Actually if you have a iGPU connected to a widegamut monitor without HW cal (or with faulty HW cal like Dells or Benqs or Asus…) it is the way to go for photo edition. Simulate an idealized version of monitor’s native gamut witha LUT3D, set that idealized native gamut profile as display profile. Result => no banding due to calibration, all smooth.

    Then how you will deal with photoshop, madvr, irfanview and firefox?

    You can … if you set the simulated colorspace as display ICC in OS configuration.

    Simulated colorspace = “source profile” in LUT3D.

    I have calibrated my monitor with XYZ LUT profile, so I should choose the sRGB IEC61966-2.1 as default monitor profile?

    No, the “source profile” in LUT3D. It can be sRGB if you are simulating sRGB for games, but it can be whatever you want, like in my example : an idealized native gamut ICC to use it in Photoshop for photo edition on a widegamut monitor without HW cal (or faulty HW cal).

    #34376

    S Simeonov
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    I don’t have sRGB emulation mode on my monitor AW3420DW. I want to be in sRGB cause it is a wide gamut monitor, and I need sRGB for everything – firefox, photoshop, irfanview and madvr also I have a 3DLUT for madvr.

    • This reply was modified 4 years, 3 months ago by S Simeonov.
    • This reply was modified 4 years, 3 months ago by S Simeonov.
    • This reply was modified 4 years, 3 months ago by S Simeonov.
    #34380

    Vincent
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    Then use it as instructed:

    the “source profile” in LUT3D. It can be sRGB if you are simulating sRGB for games, but it can be whatever you want

    For example, simulate X  in LUT3D (from a detailed display native gamnut ICC). Load it to DWMLUT, set that X as display profile in OS.
    Create a madVR LUT3D from Rec709 g2.4 to colorspace X, load it in madVR.

    Where “X” can be whatever you want, sRGB for your example. But your example you’ll loose colors outside sRGB/rec709 for Photoshop or video

    • This reply was modified 4 years, 3 months ago by Vincent.
    #34382

    S Simeonov
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    Then use it as instructed:

    the “source profile” in LUT3D. It can be sRGB if you are simulating sRGB for games, but it can be whatever you want

    For example, simulate X  in LUT3D (from a detailed display native gamnut ICC). Load it to DWMLUT, set that X as display profile in OS.
    Create a madVR LUT3D from Rec709 g2.4 to colorspace X, load it in madVR.

    Where “X” can be whatever you want, sRGB for your example. But your example you’ll loose colors outside sRGB/rec709 for Photoshop or video

    I don’t edit videos, and I edit photos in sRGB. Thank you for the explanation, Vincent.

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