Custom Color Chart & Matching displays

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  • #14815

    Dean Osborne Photography
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    Hi

    I want to create a color chart based on a reasonably sized general chart but with a few thousand skin tones to make skin as accurate as possible

    I have made a chart – no idea if its suitable! just found a list of 5 skin tones in rgb 0-100% and added a 100 patch saturation sweep for each

    I thought it may be better to add a luminescence sweep for each hue?  as in darkest to brightest without clipping lowest color channel? all stepped by 1%??

    as an example one skin color is r-100, g-87.84, b-74.12

    I would add all the values in spread sheet down to r-27, g-14.84, b-1.12

    Would this work and be useful or not?

    I have a florescent lcd main display and a ips led laptop

    I am able to get them close but sometimes still struggle when editing on 1 machine or the other, white balance decisions will be different and perhaps more importantly decisions on tint between the machines can I make the temperature & tint of the display closer than usual with display cal?

    I also note that my main display seems to vary a lot as in after a calibration a verification straight after is not accurate

    All my work is within lightroom..

    Any Help would be appreciated

    FWIW ive purchaed a Color munki display to replace my old color munki smile that is rather old now I assume this will help with a more accurate result as will a new main display sometime soon!!

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    #14851

    Florian Höch
    Administrator
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    Would this work and be useful or not?

    It would work, but usefulness will be very limited: Display devices are generally far too linear across their device response for a localized increase in test patch resolution to have any discernible effect on the resulting profile accuracy.

    can I make the temperature & tint of the display closer than usual with display cal?

    Yes. See the FAQ entry on visual whitepoint matching.

    I also note that my main display seems to vary a lot as in after a calibration a verification straight after is not accurate

    That may hint at display (backlight) instability. Disable all dynamic/autodimming/powersaving on the monitor (if it has any).

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