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

Posted:
Mon Nov 30, 2020 7:56 pm
by Michael Tiemann
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.
Re: Temporal noise Highlight A|B function is not HDR-friendl

Posted:
Mon Dec 21, 2020 9:47 am
by Michael Tiemann
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.