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When I use a profile red 32 is the same as 31 on http://www.lagom.nl/lcd-test/contrast.php . After installing Windows I noticed the red was not crushed like it was before. I finally got to installed displaycal 3.8.9.3 again. Then made 2d profile. The red 32 is the same as 31 then. I noticed measure red in hcfr it is crushed too just 254 red is extra close to 255 red. The profile loader uses a different slightly higher range for 0 to 255. This is what caused it. Anyway to use the off Windows 10 lut? Will it work? Windows lut is 65535 and I forget Profile loaders. It is my tv range is set to 65535 and I can not change it.
I was wrong 65535 is 256&256 and is linear curve. Windows does 255×256=65280. 4 years ago same. Why is my screen calibrated to 655280? Both could be correct since 0x256=0. 1rgb is 256=256*1. 2rgb is 512=256*2. There is 256 levels of brightness 0 to 255 but 255 levels of color 1 to 255. 0 color would be black 0 brightness. https://www.reddit.com/r/Windows10/comments/fnbg2l/windows_incorrectly_computes_a_linear_vcgt_curve/