search

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
1.04k stars 40 forks source link

Desaturation issue #85

Open pqsmmobile opened 10 months ago

pqsmmobile commented 10 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 10 months ago

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

pqsmmobile commented 10 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 10 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 10 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 10 months ago

Then disable calibration.