rescue of Extreme ISO capture

Yesterday I returned to a location I had not visited since January 2018. Though there is abundant birdlife, much of it is in heavily shaded rainforest. I chose to abandon my regular max ISO of 6400 and this one came in at ISO 25600.
“Diffuse and Sharpen” seems too blunt a tool (at least with my small experience of it) for this image. I fiddled with the profiled denoise options and ended up settling for the match found.
I’d love to see some expertise/experience-driven renditions.

[This file is licensed Creative Commons — Attribution-NonCommercial-ShareAlike 4.0 International — CC BY-NC-SA 4.0
2024-08-30_11-02-04.89_DSC0728.nef (31.7 MB)

2024-08-30_11-02-04.89_DSC0728_01.nef.xmp|attachment](upload://cJJoJ2yA28OTZcUKb0tzXXzjKLp.xmp) (7.5 KB)

6 Likes

My attempt. I used two instances of Profiled Denoise and a third of Diffuse and Sharpen with the Denoise - medium preset. I did not try to sharpen the image after denoising.


2024-08-30_11-02-04.89_DSC0728.nef.xmp (9.6 KB)

5 Likes

Rt. 5.10


2024-08-30_11-02-04.jpg.out.pp3 (14.3 KB)

2 Likes

With noisy images I tend to use the details threshold slider to control what is sharpened and what is denoised. A positive value restricts sharpening to the detail edges while a negative value protects the details and denoises the smoother areas.
image

2024-08-30_11-02-04.89_DSC0728.nef.xmp (28.1 KB)

8 Likes

Wow - mega-thanks for achieving the seemingly impossible. I note that you used such masking in no less than 5 module instances!


2024-08-30_11-02-04.89_DSC0728.nef.xmp (19.5 KB)

3 Likes


Bird_2024-08-30_11-02-04.89_DSC0728_01.nef.xmp (14.8 KB)

3 Likes

Hello, a quick test with Art 1.23


2024-08-30_11-02-04.89_DSC0728.jpg.out.arp (56.0 KB)

5 Likes

Here’s a more polished version, still with Art 1.23


2024-08-30_11-02-04.89_DSC0728-1.jpg.out.arp (101.7 KB)

10 Likes

Dt. 4.8.1


2024-08-30_11-02-04.89_DSC0728.nef.xmp (22.0 KB)

6 Likes

i usually used darktable but did this in rawtherapee. ideally i would mask the bird to use less noise reduction there and more on the darker background where details is not so important, but i didn’t :slight_smile:
didn’t do much else with colours or adjusting the bird exposure to bring out the background a little but just went for a quick compormise


2024-08-30_11-02-04.89_DSC0728.jpg.out.pp3 (14.3 KB)

2 Likes

Here you are :slight_smile:

Link valid until 30 Sept:

https://www.swisstransfer.com/d/bcfe7b30-25fc-457d-84ac-f3f77a55db61

1 Like


2024-08-30_11-02-04.89_DSC0728.nef.xmp (17.6 KB)

3 Likes

First version the bird is lightened a bit more… then less on number 2 and then a small color tweak on top…

I kept fiddling with the same edit so you will have to load the jpg as the sidecar…

I think this is the one from the last version

2024-08-30_11-02-04.89_DSC0728_01.nef.xmp (20.9 KB)

2 Likes

This is a hard one for me. Thank you for sharing!

I tried to keep some structure in the feathers and did not reduce noise too much.


2024-08-30_11-02-04.89_DSC0728_RT-5.jpg.out.pp3 (15.0 KB)

2 Likes

:star_struck: Your denoising work is amazing.


2024-08-30_11-02-04.89_DSC0728.nef.xmp (11.5 KB)

2 Likes

Thank you very much. The way to process is in the .arp file, don’t forget the demosaicing algorithm, for photos with a lot of noise I use “LMMSE”

I found it interesting how you leveraged the detail threshold and recovery with a setting of 100 luma noise correction…you got very nice results…I don’t use ART as much as DT but when I do I would sort of keep that correction at 15-20 to try to keep the detail but I never really used such extreme settings which in this case for sure worked well.

Whooo, what a fight.


2024-08-30_11-02-04.89_DSC0728.nef.xmp (21,8 KB)

2 Likes