Feature Request: allow seperate control over upward and downward auto exposure correction (HDR-tonemapping)

[geextahslex]

Expected behavior of the wanted feature

At the moment you can either enable or disable this "auto exposure correction" my suggestion is to have more control over it.
As for now the upward correction of the image (brightening) has some issues with saturation (also too bright night scenes which look unnatural) but the downward correction works fine. It would be great if you could have the downward (darkening of the image) exposure correction without dealing with the upward (brightening) issues.

It could be on/off or percantage 0-100%

hdr-upward-correction=0-100%
hdr-downward-correction=0-100%

Thank you :)

Alternative behavior of the wanted feature

No response

Log File

full output
output full.txt
gpu-debug
output.txt

Sample Files

almost black and white

normal (feature disabled with vf=format=sig-peak=4.926)

washed out

normal (feature disabled with vf=format=sig-peak=4.926)