DispcalGUI calibration vs Resolve 3D LUT calibration

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  • #744

    anonymous SourceForge
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    Is there actually any difference between calibrating your display in DispcalGUI, having DispcalGUI applying the profile and disabling the profile handled by DispcalGUI, having Resolve handle the profile within itself, using a 3D LUT made from a calibration with DispcalGUI through Resolve’s viewer?

    And is it possible to leave the DispcalGUI’s installed profile enabled while calibrating through the Resolve viewer?

    Is DispcalGUI able to apply two different, independent profiles to two different displays connected to the same video card at the same time?

    Thanks!

    #745

    Florian Höch
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    Is there actually any difference between calibrating your display in DispcalGUI, having DispcalGUI applying the profile and disabling the profile handled by DispcalGUI, having Resolve handle the profile within itself, using a 3D LUT made from a calibration with DispcalGUI through Resolve’s viewer?

    Resolve doesn’t make use of ICC profiles, so a 3D LUT is the only way to have a color corrected display in Resolve.

    And is it possible to leave the DispcalGUI’s installed profile enabled while calibrating through the Resolve viewer?

    Only if the profile doesn’t incorporate 1D LUT calibration, because otherwise the 1D LUT calibration would be applied twice (once in the Resolve GUI viewer via the 3D LUT, then again via the video card gamma tables).

    Is DispcalGUI able to apply two different, independent profiles to two different displays connected to the same video card at the same time?

    Yes, although application support for this is limited (a shortcoming of the respective applications). Some products e.g. Photoshop have good multi-display support.

    #746

    anonymous SourceForge
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    Resolve doesn’t make use of ICC profiles, so a 3D LUT is the only way to have a color corrected display in Resolve.

    are you sure? When I toggle profile on/off in DispcalGUI, it really does influence the color/gamma of my Resolve window..

    #747

    Florian Höch
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    What you’re seeing is the effect of the 1D LUT calibration.

    #748

    anonymous SourceForge
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    You know, Florian; Resolve GUI has a dark grey background. Don’t you reckon that it might be important to have that background as chroma-free as possible?
    Therefore I was thinking: what if we could have the DispcalGUI profile (1D LUT + ICC enabeld) and somehow could compensate for that 1D LUT during the Resolve 3D LUT creation? In this way, we could have the gray background at least pretty neutral (1D LUT); the Resolve viewer is color correct AND at the same time we have the ICC profile installed so when toggling between different applications we still have the other applications color managed.

    #749

    Florian Höch
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    Therefore I was thinking: what if we could have the DispcalGUI profile (1D LUT + ICC enabeld) and somehow could compensate for that 1D LUT during the Resolve 3D LUT creation?

    That’s already possible. You have to use the standalone 3D LUT maker. Uncheck the “Apply calibration (vcgt)” checkbox and create the 3D LUT. Note that for a 3D LUT that’s used for a monitor connected through e.g. DeckLink, you still need the calibration be part of the 3D LUT as vcgt won’t affect DeckLink output. The described technique is only suitable for a 3D LUT exclusively used in the GUI viewer.

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