changing calibration repeat threshold and patch count

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This topic contains 2 replies, has 2 voices, and was last updated by  Mark Appleton (@mark-appleton) 1 week, 5 days ago.

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  • #19158

    Mark Appleton (@mark-appleton)
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    Is it possible to change the repeat thresholds and patch counts for the calibration step (not the profiling step)?

    I know that changing the “profile quality” reduces the repeat threshold indirectly (high quality gives me 0.4 DE for 90 patches), but is there a way to set it explicitly?

    #19163

    Egor S. (@egor-s)
    Participant
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    Hi,

    thats what Vincent says  in the “Graphics card LUT vs. display LUT” post:

    “There are two set of measurements:
    -calibration patches (for grey), controled by calibration speed setting
    -profilling patches (user controlled, the ones you named), not related to calibration (for making a LUT3D for madVR or Resolve maybe, but not for desktop calibration)”

    So  if you want to increase the patch counts, you have to decrease the calibration speed.

    I haven’t tried it yet.

    #19172

    Mark Appleton (@mark-appleton)
    Participant
    • Offline

    Hi,

    thats what Vincent says  in the “Graphics card LUT vs. display LUT” post:

    “There are two set of measurements:
    -calibration patches (for grey), controled by calibration speed setting
    -profilling patches (user controlled, the ones you named), not related to calibration (for making a LUT3D for madVR or Resolve maybe, but not for desktop calibration)”

    So  if you want to increase the patch counts, you have to decrease the calibration speed.

    I haven’t tried it yet.

    It looks like I’ll have to go into the source code, then, if the slider is the only way to control the greyscale calibration quality.

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