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ledoge / novideo_srgb

Calibrate monitors to sRGB or other color spaces on NVIDIA GPUs, based on EDID data or ICC profiles
GNU General Public License v3.0
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Desaturation issue #85

Open pqsmmobile opened 7 months ago

pqsmmobile commented 7 months ago

When using novideo_srgb+clamp to srgb, and the clamp is active and a movie is played in madvr with bt.709 3dlut - the picture is more desaturated.

Terepin commented 7 months ago

That means that MadVR is using color profile. Make sure it's not installed in Windows.

pqsmmobile commented 7 months ago

That means that MadVR is using color profile. Make sure it's not installed in Windows.

Windows uses the standard sRGB profile

Capture363665

Terepin commented 7 months ago

That's the reason. It shouldn't use any color profile, because if the app is color aware, then it uses this profile and then NoVideo_sRGB applies second gamut clamp on top of that, resulting in desaturated colors.

pqsmmobile commented 7 months ago

That's the reason. It shouldn't use any color profile, because if the app is color aware, then it uses this profile and then NoVideo_sRGB applies second gamut clamp on top of that, resulting in desaturated colors.

The only two options that work with madvr are - to disable calibration in madvr or choose the display that is already calibrated to bt 709. Using a 3dlut with novideo_srg enabled clamp is impossible.

Terepin commented 7 months ago

Then disable calibration.