I'm still playing around with On1 nonoise.
The first image I opened a raw file from a Sony A7m2 at ISO 4000. No extreme high noise, but still noisy.
Opening takes a few seconds, but moving around and adjusting sliders and doing the final 'save' are all pretty quick. It makes tweaking the sliders quite OK and fast to use, which is nice.
I compared it to Dxo DeepPrime (the current leader of the bunch so to say) and although there were differences, I wouldn't say one is clearly better than the other.
The picture is taken with an unsupported lens in DxO, so that means also no sharpening (the 'unsharp mask' DxO enables by default for unsupported lenses I turned off).
Applying a tiny bit of sharpening to the DxO version (since On1 _did_ do sharpening) and both appear to give the same sharpness, same details.. nothing were the one is saving detail the other isn't, etc.. Nice!
You do have to take care if you open the On1 NoNoise DNG in Camera Raw, since the default sharpening and color-noise-reduction of ACR are turned on, and you want to disable those.
Also, having tried on only a few photos, but the DNG output of On1 seems to offer the same 'editability' as the original RAW, so clipped highlights or anything.
Now, it gets tricky where I open a file at ISO 6400, taken at low light. The file needs a strong white-balance adjustment and exposure to be pushed up. More of a challenge.
On1 NoNoise has is noise sliders all the way up.
It seems to do a very good job, BUT the noise reduction seems to be less at the edges of the picture. I guess due to vignetting the light is also less here (or the exposure comp is even more there) but it leaves a lot of visible noise at the edges while the rest of the picture seems clearer. Since the picture then gets its exposure raised by a lot, it's very noticeable in the end result. DxO does this way better out of the box.
Topaz Denoise AI also seemed to have this effect: Less denoising at the edges, to almost no denoising at the very edge.
I see the same here, and it makes it way less usable:(.
On to a real challenge. A M4/3 16mp shot, but at ISO 16000, taken in the middle of night. But there was more light around, and I shot with a vintage 50mm 1.4 lens with a speedbooster, so it's more to using 35mm f1.0 lens. So I had more light captured, and the image seems less noisy than the ISO6400 full-frame shot. That shows you that ISO is not everything, actually capturing more light also helps in getting noise down :P.
But I get somewhat the same here. At the edges it seems to classify less as noisy, while DxO keeps it strong performance up.
All the fine grain is gone everywhere, but at the sides it seems to classify more stuff as 'detail' while it isn't, and it creates a blodgy, artifacty look.
In other noise programs you have two sliders: 'what is noise' (noise strength) and 'how much do you want to remove'. Leaving the 'what is noise 'slider too low creates the same amount of artifacts, where lines or weird patterns get enhanced as if it was detail while it's not.
On1 seems to have the same thing (at extreme cases), which - together with the reduction in strength at the edges - makes we want for sliders that could just 'go a bit higher' :).
The performance at the non-so-extreme case is very very nice. Competing with DxO Deep Prime is a good thing, and it's an awesome tool to have in my collection in this case.
But at the more extreme pictures it's a bit hit or miss, depending on the fact that the noise reduction doesn't max out too soon and / or denoise-strength seems to be uneven across the frame.
One of the things for which I wanted On1 NoNoise is the ability to work on non-raw files, tiff files from scans or pictures preprocessed in another way.
I was a bit disappointed to see the warning 'this is beta and do not expect the best results yet, this will come'.
Although the denoising on some iso400 film negatives seems to be good and fast (and nicely adjustable to get a desired not-so-clean look), whatever I seem to do with the sharpening / detail sliders _nothing_ appears to happen :).
I guess if you use NoNoise as a plugin you will get the same effect, since it's only possible to work on simple rgb data instead of bayer-array stuff?
I will resort to my custom ways for the time being: Create a copy of the layer, denoise it so the noise is really all gone (a bit too much noise reduction). Now compare the original layer to the denoised layer, and you get a layer with all stuff that has been removed which you can add back later. Make edits on the denoised layer and sharpen that layer, and in the end layer the noise back on top, but now play with the opacity to get the desired amount of noise (and set the layer to luminance mode to leave out all the chroma noise but play with the amount of luma noise you add back in).
Please sign in to leave a comment.