I re-edited one of my high ISO photos because I wasn’t satisfied with the noise reduction in dt. After reading the manual on wavelet and denoising, I was able to achieve a very usable result. I was able to do this in one module, Denoising (Profile).
The trick seems to be to adjust the curve for Y0, which greatly reduces the luma noise.
Unfortunately, the screenshot in the manual always sent me down the wrong track, lowering the curve instead of raising it.
My setup:
the manual is describing how to protect fine details a few sentences before showing the screenshots…
If details doesn’t matter, you‘re free to raise the denoising in those areas … usually the task is to find a proper balance between denoising and keeping details, but that depends on the image
Denoising is subjective, and always a trade-off. I usually target chroma noise, and for luma, if I reduce it at all, I tend to only reduce the highest frequencies.
The description in the manual is correct, but the screenshot confused me.
Yes, noise reduction is highly subjective, but I wasn’t satisfied with the results, so I took another look at the manual and found my mistake. I was on the wrong track with the Y0 curve.
That’s in a completely different section.
We should add a figure caption or a better description nearer the screenshots. The screenshot seems random. Thanks for the report.
in case it’s use to anyone, the auto settings for the panasonic GH5S often benefit from a tweak, this camera has dual native ISO, it’s possible the sample files provided don’t cover both, I don’t know if allowances are made for dual native ISO in cameras generally, with the GH5S photo’s look good shot in either 400 or 800 ISO, and sometimes a bit janky otherwise, it’s an 8 year old camera at this point, I’m not sure if their newer ones include it (it’s a feature from their high end video cameras that got added, the more photo-centric cameras might not have it)
Thank for the heads up. I love that camera.
