HowTo Calibrate HDR Dynamic Scene Optimiser

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This topic contains 4 replies, has 2 voices, and was last updated by  adrjork 4 weeks ago.

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  • #16469

    adrjork
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    Hi everyone, absolute newbie here. I have a Pana FZ800 that’s an OLED HDR TV that I’d use as reference monitor in Davinci Resolve.
    I’d like to calibrate the TV with DisplayCal, X-Rite i1 Display Pro, and Davinci.
    My question: which are the correct settings in DisplayCal to calibrate this HDR TV? And how can I calibrate correctly with Dynamic Scene Optimiser on (since it can’t be turned off)?
    Thanks for your help.

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    #16520

    Florian Höch
    Administrator
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    My question: which are the correct settings in DisplayCal to calibrate this HDR TV? And how can I calibrate correctly with Dynamic Scene Optimiser on (since it can’t be turned off)?

    I do not have this TV, but the general procedure for TVs where it is expected that the response will not be stable (like most if not all HDR TVs due to their tone mapping, dynamic backlight/OLED light and power saving features):

    • (Resolve only) Make sure to use the “Resolve” preset as a base or set minimum display update delay to around 1000ms manually.
    • Disable creation of 3D LUT after profiling (on the 3D LUT tab).
    • Try a small profile (175 patches) with white level drift compensation enabled.
    • If profile self check delta E is high (above 1 for average or above 5 for peak), try to experiment with a different patch sequence (order), i.e. maximize luminance difference.
    • If that doesn’t help, try full field pattern insertion (you need ArgyllCMS 2.0.2b development snapshot for this).

    Once you have a reasonable profile (self check error below the numbers above), set source colorspace to BT. 2020, set tone curve to SMPTE 2084 (roll-off), enter your display peak luminance (you can see it during interactive adjustment, or in profile information after profiling) and set mastering peak to the same value (essentially the same as clipping, but should preserve hue), set hue preservation to 100%, then create your 3D LUT. Note that the TV tone mapping will still affect what you see.

    #16527

    adrjork
    Participant
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    Thanks REALLY much for your kindness!
    I’ll surely try this flow.
    One more – and perhaps silly – question: my OLED has 12 step IRE values (a couple dedicated to near black), could them be useful in anyway for calibrating?

    #16537

    Florian Höch
    Administrator
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    my OLED has 12 step IRE values (a couple dedicated to near black), could them be useful in anyway for calibrating?

    Safest to not touch them for 3D LUT calibration.

    #16539

    adrjork
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    Ok! Thanks really a lot!

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