LUT for use without Profile Loader

[Mark Appleton]

I’m trying to calibrate my LG C3 with a LUT for use in a home theater that won’t use any profile loaders – all calibration is at the TV.

I intend to calibrate the greyscale and gamut primaries/secondaries with the onboard TV controls, and then use DispCAL to generate a LUT – when I do this, do I check “Apply calibration (vcgt)”, or leave it blank?

Thanks.

[Ben]

You would leave it blank.   vcgt is video card gamma table.    It will overwrite the greyscale controls you say you are doing.   Im not sure how you can upload the lut to LG C3 without Calman home or a Blackmagic box.    VCGT could work with a blackmagic box.    3d Luts are out of my league.    A 1d lut is not going to be better with a lut on non colormanaged apps.   Colormanaged apps need video card and the icc profile works with the video card to adjusts it colors.

More info would be needed to answer correctly.

I found this guide.  https://tftcentral.co.uk/guides/lg-oled-tv-calibration-guide-autocal-and-hardware-calibration

• This reply was modified 1 year ago by Ben.

[Mark Appleton]

I got a couple of programs off github that allow uploading of 3D LUTs via network.

I will be using it as a PC monitor but I don’t want to rely on software to keep the profile in place – it can “drop out” in some games. No PC monitor I know of allows for much more hardware “calibration” than contrast, brightness and white balance gains

[Ben]

Just do not double apply the video card gamma table.   So if windows is flat linear lut curve upload the 1d lut to the profile inside the tv and do not not touch tv controls after.    If you load the gamma curve in windows then do not load it in the tv.

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