Color profiles/LUT seems different in jit.matrix for Mac and Pc


    May 17 2021 | 9:55 am
    Hello everyone! Facing problem with color interpritation on Mac and Pc. Same patch is showing different results for same basic jpg file. For example: this color information is in Photoshop:
    Photoshop color picker
    Photoshop color picker
    This file was saved as JPEG file without color profile. And this is result of "jit.matrix 4 char 32 32" -> "jit.iter" for same picture on mac:
    mac color interpretation
    mac color interpretation
    as you can see, R/G/B information is wrong, 255 -> 251, 242 -> 243, 0 -> 51, no matter what arguments in jit.matrix are. And the same patch shows correct information on Windows. It seems to me, that Mac version uses some color profile or LUT settings, but I don't know how to avoid it. Does anyone knows how to fix it? Please help!

    • May 17 2021 | 2:23 pm
      likely due to your Display Profile (System Preferences -> Displays -> Color)
      setting it to sRGB IEC(bunch of numbers) should "fix" this. We are investigating alternatives t the current behavior for jitter matrices, but the current behavior is actually "correct" although probably unexpected.
    • May 17 2021 | 3:23 pm
      Wow thanks! I figured out that using BMP images fix that behavior, I'm lucky that I didn't need video for that setup.