Novideo_srgb vs Windows 11 ACM

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Terepin
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Novideo_srgb vs Windows 11 ACM

Post by Terepin » 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?

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RealNC
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Re: Novideo_srgb vs Windows 11 ACM

Post by RealNC » 30 Jul 2024, 15:52

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.
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Terepin
Posts: 8
Joined: 02 Dec 2022, 06:54

Re: Novideo_srgb vs Windows 11 ACM

Post by Terepin » 31 Jul 2024, 00:08

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.

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