Temporal noise Highlight A|B function is not HDR-friendly

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Michael Tiemann

  • Posts: 684
  • Joined: Fri Jul 05, 2013 11:22 am

Temporal noise Highlight A|B function is not HDR-friendly

PostMon Nov 30, 2020 7:56 pm

When using the Highlight A|B function to see what temporal noise reduction is doing to my image, the white background, when displayed at 3000 nits, is not very user-friendly. Could you please make it colorspace-aware and use the default graphics white color (200 nits) instead? Thank you! And my eyes thank you.

This is with Resolve Studio 17.0B Build 9.
MacOS Catalina Version 10.15.7
iMac Pro (2017)
3 GHz Intel Xeon W
64GB 2666 MHz DDR4
Radeon Pro Vega 64 16 GB
RED Rocket-X
Decklink 8K Pro card feeding FSI XM310K Monitor
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Michael Tiemann

  • Posts: 684
  • Joined: Fri Jul 05, 2013 11:22 am

Re: Temporal noise Highlight A|B function is not HDR-friendl

PostMon Dec 21, 2020 9:47 am

Much better in 17b6! Now at least the non-differenced parts of the image are a tame color of gray (not 3000-nit white).

I still think that the displayed difference in Highlight A|B should be limited to between 0-203 nits when displaying PQ. First off, the idea that one needs to display a 3000-nit difference between a pixel that was full-white and is now full-black is just non-sensical, because the highlight function itself is neither a scene- nor display-referred image. It is a scope output. 0-203 nits is plenty of space for the scope to show us minimum and maximum outputs. But it is an enormous relief that the most egregious problem with the highlight A|B mode has been fixed.
MacOS Catalina Version 10.15.7
iMac Pro (2017)
3 GHz Intel Xeon W
64GB 2666 MHz DDR4
Radeon Pro Vega 64 16 GB
RED Rocket-X
Decklink 8K Pro card feeding FSI XM310K Monitor

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