Calibrating Samsung TV?

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  • #144877

    toke lahti
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    Update: someone at AVS posted a link to 1.6 version.

    #144899

    toke lahti
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    Okay,
    I now have HCFR working through RP4.

    Any ready-made walkthrough how to make the 10-point calibration?

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    #144901

    toke lahti
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    Oh, shoot!
    Just noticed that, to use 10-point white balancing, you have to be in “Movie” mode.
    So, that won’t work with HDR+-mode…

    #144902

    toke lahti
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    TV’s model is UE49KU6645U.
    I guess I have to settle with 2-point WB and the usual basic picture adjustments…

    #144903

    toke lahti
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    HCFR seems to be quite complicated without real documentation.

    If I’d wanted to use Pgen_client for both pattern generation and reading xrite-i1display3, do I need to install drivers for it from argyllCMS?
    As this:
    https://www.argyllcms.com/doc/Installing_MSWindows.html
    ?
    If I install DisplayCAL to that old windows laptop, will the driver for that colormeter get installed with that?

    Or just install the ArgyllCMS?

    #144904

    Ben
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    I think HCFR is great.    Windows drivers work for argyii softwares.    xrite or calibrite gives a driver.   Learning color management is not so easy.   So many displays and so many ways to calibrate it.    Green controls the gamma mostly.  Red controls the color.  Blue controls the saturation and white color temperatur.    Without a display that shows black as no red green blue color is messed up until it reachs a gamma that matches its rgb.   I just measure 10% lumance of red green and blue with colorchecker  10 point lumance checker to set the 5% controls that adjust the 10%.    You can see after 30percent most color lumances stay the same value below what it should be.   Steady color is undetectable by eye.    5% tv controls at default gives the best color at 5% and 10%.   It is still  over 120%  bright at 5% but color clipping is not happening.   ICC profiles solve problems like that.

    #144906

    toke lahti
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    From reading comments from AVS thread, seems to be, that Pgen_client has issues with different versions of ArgyllCMS and Pgenerator itself. The developer does not seem to be so interest in that app anymore.
    My i1d3 problem might had been about bad usb port on old laptop. With different port at least HCFR seems to work with less “not responding”…

    Calibrite Display Pro HL on Amazon  
    Disclosure: As an Amazon Associate I earn from qualifying purchases.

    #144907

    toke lahti
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    When using HCFR with RP4, there is now way to control what Pgenerator outputs?
    Regarding resolution, refresh rate and chroma subsampling?

    #144909

    Vincent
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    When using HCFR with RP4, there is now way to control what Pgenerator outputs?
    Regarding resolution, refresh rate and chroma subsampling?

    Use Device control for these tasks, it’s linked on Raspbery Pi Generator on AVS Forum.

    #144929

    toke lahti
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    When using HCFR with RP4, there is now way to control what Pgenerator outputs?
    Regarding resolution, refresh rate and chroma subsampling?

    Use Device control for these tasks, it’s linked on Raspbery Pi Generator on AVS Forum.

    I set PGenerator to UHD, RGB full range, 29.97Hz ein PGen_clinet.
    Device Control says 25Hz & limited. I can’t change the settings and I’m missing settings for RESOLUTION and CROMA SUBSAMPLING.
    What’s wrong?

    Another thing, is there a way to check from Apple Silicon mac info aobut outgoing video signal?
    Equivalent what AGDCDiagnose used to be?

    #144936

    Vincent
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    When using HCFR with RP4, there is now way to control what Pgenerator outputs?
    Regarding resolution, refresh rate and chroma subsampling?

    Use Device control for these tasks, it’s linked on Raspbery Pi Generator on AVS Forum.

    I set PGenerator to UHD, RGB full range, 29.97Hz ein PGen_clinet.
    Device Control says 25Hz & limited. I can’t change the settings and I’m missing settings for RESOLUTION and CROMA SUBSAMPLING.
    What’s wrong?

    As I said on AVS, but just of someone reads this in the future from google:

    • Pgen must be conneceted to access apps
    • Use cloud to get apps, I use “Settings 1.5”
    • Upper right icon “->” on each app allows to switch to other tab.
    #144937

    toke lahti
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    I think HCFR is great.

    I think when it is limited to 8-bit colors, it’s the blast from the past.

    #144938

    toke lahti
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    I don’t know where my last comment disappereared.
    But I did get PGen to work. I just assumed it didn’t need the cloud account, but it did.

    ConnecTEDDD in AVS forums told, that PGen-HCFR combo is limited to 8-bit.

    The whole idea for me was to calibrate my tv to be used with MBP in 10-bit HDR.
    I guess this is not happening.

    Maybe I try again when ColourSpaceZRO is released to macOS.

    #144939

    Vincent
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    I don’t know where my last comment disappereared.
    But I did get PGen to work. I just assumed it didn’t need the cloud account, but it did.

    ConnecTEDDD in AVS forums told, that PGen-HCFR combo is limited to 8-bit.

    That is a non issue for calibrating a TV using its internal CMS, the N-point grayscale, WP and optionaly 6axis for gamut cliping to rec709 or whatever.

    The whole idea for me was to calibrate my tv to be used with MBP in 10-bit HDR.
    I guess this is not happening.

    Do you want to use mpc as source for reading, rendering and sensing HDR content on the TV?
    That is not using the TV as a TV. Or as a widegamut monitor.
    That needs that TV behaves as expected for that input. It’s a full calibration in HDR. This means writing a custom LUT from rec2020 PQ (or similar) to actual panel characteristics. You’ll need to acces to propietary API for that TV.
    Otherwise you may access to very simplified CMS to tweak HDR grayscale response and “expect” (because it will be beyond your control) that when you “move” greyscale in HDR colorspace 3d volume all the other points mapped from Rec2020 to actual panel response won’t be affected in a negative way because whatever LUT and tonemapping wrote on TVs memory.

    Maybe I try again when ColourSpaceZRO is released to macOS.

    That will have the same limitations as HCFR = measuring the TV. Read ist features: https://lightillusion.com/colourspace_zro.html
    You’ll need a more expensive calman or LI licenses to do a “full calibration”, if that model is supported by X or Y version or each software.

    ——————-

    On SDR be it rec709 or widegamut to be used as a display BY A COMPUTER, you calibrate white and greyscale to have certain color, and optionally to some expected gamma for non color managed enviroments. Then you profile display to capture how it behaves in an ICC file. Apps read ICC profile published by OS and reencode whatever content they what to show in display colorspace.

    HDR is different in the way most computer OSes deal with it.  App or even OS sends Rec2020 PQ data (typically) and expects that TV itself  reencondes it to its native colorspace, internally. As I wrote abvove, unless to full acces to whatever LUT and tonemaping TV is using… you’re mostly limited to tweak a little CMS fr greyscale and nothing more, and expect that your tweak does not “deform” the mesh of whatever tonemapping manufactured did

    • This reply was modified 8 months, 2 weeks ago by Vincent.
    • This reply was modified 8 months, 2 weeks ago by Vincent.
    #144971

    toke lahti
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    Just got a GREAT tip for macbook pro: the app called BETTER DISPLAY:

    https://betterdisplay.pro/

    With a bit testing and hazzle (outdated hdmi-switchers, different cables and adaptors),

    I have reached to conlusion, that with best of my cables, I can reach to (with my mbp M1pro14″):

    1. 60Hz
    2. 10bit
    3. RGB (4:4:4)
    4. HDR10
    5. full range

    Now, back to calibrating with RP4 & windows…

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