Image processing caveat - not sure how to come by

Software RawTherapee
1

I shot an event in a theatre, low light, small flashes, high ISO.
Still I am not a very skilled RT user and I am currently using 4.0.x

So my question might be out of date. But still, can someone give me a hint?

(will post examples later on).

The dark parts either show ugly solarization effects, pixeling up the darkness, or if I correct for these, harsh edges from dark gray to black.

Is there a more elegant way to fix for that?
Does 4.2 help in this case?

Thanks!

2

Try 5.0

3

1600×3188 1.8 MB

https://filebin.net/yrmgua87g3xgw6on/_img8784.dng.pp3

I could just upgrade, ok, but what is the solution to this specific problem?
I don’t think the upgrade helps in itself. this is surely not a program bug

1 Like
4

Example E shows what I can see in RT as well as the CIECAM curves.
The corresponding .pp3 is behind the second link. If someone needs more details.

5

How do you know?

It does in fact look like a program bug, plus in-camera noise reduction which the raw file does not have, and hot pixels.

Upgrade to RT5, then get back to us if there’s still a problem.

http://rawpedia.rawtherapee.com/Noise_Reduction
http://rawpedia.rawtherapee.com/Preprocessing

6

Thanks! This will take a while and a major system upgrade.