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Novideo_srgb vs Windows 11 ACM

Posted: 22 Jun 2024, 15:01
by Terepin
As far as I understand it, both tools are using EDID to clamp the color gamut to sRGB. But the weird thing is that they both give different result, with ACM being slightly less saturated. How is this possible? And which one is more correct?

Re: Novideo_srgb vs Windows 11 ACM

Posted: 30 Jul 2024, 15:52
by RealNC
Terepin wrote:
22 Jun 2024, 15:01
As far as I understand it, both tools are using EDID to clamp the color gamut to sRGB. But the weird thing is that they both give different result, with ACM being slightly less saturated. How is this possible? And which one is more correct?
No idea which one is more correct, but novideo configures the nvidia driver to do this, while in Windows 11 it's Windows itself that does it, so it doesn't surprise me they give different results.

Re: Novideo_srgb vs Windows 11 ACM

Posted: 31 Jul 2024, 00:08
by Terepin
Hmm. Well, Novideo normally doesn't affect gamma unless specifically enabled, but ACM does and uses sRGB curve. So I would guess that ACM is more accurate.