Ideas how to improve image with ISO 16000 ?

Processing Play Raw
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My try with DT.
Pushed u0v0 hard to get rid of most color noise.
Used D&S to remove some luma noise.
But it’s always a balance between details and noise.

ISO_16000_01
ISO_16000_012000×1125 859 KB

ISO_16000.CR3.xmp (13.3 KB)

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Wow, what is this magic with the hot pixels module, that gets rid of the magenta cast in the darker parts of the image? What is the mechanism behind it? I thought hot pixels was only meant to detect dead pixels. Really admire this technique of yours.

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There is also a bias slider to use for green and magenta in denoise profiled. You can use that for green and magenta cast

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ISO_16000_01
ISO_16000_012048×1366 1 MB

ISO_16000.CR3.xmp (19.2 KB)

I’ve tried to improve skin tones a bit, at the expense of coloring the rest of the image. Also reduced green since to my eye much of the noise is that color.

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I have no good idea why it works. Some noise is apparently detected as “hot pixels”. And it’s only working in some cases.

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