Black levels at standard sRGB icc vs profiled icc

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  • #142562

    AytacFx
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    #142563

    Vincent
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    After a fast read, it seems that colorspace matrix-to-matrix is done by GPU driver even if you disable GPU acceleration.
    A lot of years ago the nvidias with full GPU driver acceleration in some interval of driver versions (solved long ago) caused weird issues, that’s why I suggested to turn off GPU acel.
    As other users have tried in your link, as you did, turning off GPU accel on M-chips does not disable “all” features.

    D Fosse diagnosis seems right to me, you’ll have to wait for an update.

    On windows, with a x86 machine, all lifting is caused by sRGB vs “display profile TRC”, and it is legit ( RGB1 in sRGB should be render as RGB 6 if display profile says “perfect 2.2”) IF display profile matches calibrated display behavior to some extent (if actual TRC is very very close to display TRC).

    #142991

    AytacFx
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    Hi Vincent,

    I’ve now fully switched to Windows and calibrated 3 different options. Which one is the best solution for Windows?

    Question 1: Should I go for:
    1: XYZLUT with matrix? (default settings)
    2: Matrix Single gamma 2.2
    3: Matrix Single sRGB
    — I attached raport below.

    Question 2:
    IF Matrix Single curve, should i select the BPC or NOT?

    Question 3:
    Gamma: Single sRGB or XYZLUT 2.2 follows gamma more accurately. Am I correct?
    (I’m not able to run my monitor at 10 bits right now because of the HDMI 2.0 cable; tests are being made at 8 bits).

    I also posted a temporary solution for macOS users. I thought you might want to know, so I’m sharing it with you.
    https://community.adobe.com/t5/photoshop-ecosystem-discussions/photoshop-not-showing-correct-colors-update-after-3-weeks-of-troubleshooting/m-p/15126107/page/2#M851090

    The latest version of Erkan’s didn’t work on the latest Windows 11, but I saw your post a few days ago stating that the releases are meant for Linux/macOS. So, I created these profiles with DisplayCAL 3.8.9.3

    Thanks for your support! =)

    • This reply was modified 1 year, 4 months ago by AytacFx.
    • This reply was modified 1 year, 4 months ago by AytacFx.
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    #142998

    Ben
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    It seems color is more important for work.   Gamma is just off above 75%  but that is looking like to get each rgb white to match better with the xyz profile.  I would recommend a large color test to check all colors.

    Your report is not compareing it to rec 709.   It is compareing it to stored colorspace measured in the profile.  Simulating profile lets you test your display as it was a simulated colorspace for viewing things in that colorspace.     Is your app converting it rec 709?   I think it is.  Do you save every picture over to get it to a target colorspace?

    #142999

    AytacFx
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    It seems color is more important for work.   Gamma is just off above 75%  but that is looking like to get each rgb white to match better with the xyz profile.  I would recommend a large color test to check all colors.

    Your report is not compareing it to rec 709.   It is compareing it to stored colorspace measured in the profile.  Simulating profile lets you test your display as it was a simulated colorspace for viewing things in that colorspace.     Is your app converting it rec 709?   I think it is.  Do you save every picture over to get it to a target colorspace?

    Hi Ben,

    Thank you for your response. I don’t do anything with Rec. 709/video, only photos for hobby purposes.

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