Noise in digital imagery is a black art what with cameras are hardware software same thing.
I don't think we will get some degree of perfection (colour balance,) until at least 2050, this will be an evolution when the eye brain basically unable to date a picture, like the power of monochrome.
another factor is the quality of light, the software optimises enhances, another generation of noise.
As the Greeks like to say, shit food, shit weather, welcome to Britain.
καλός ώρες. (welcome, informal.)

When I want to contrast/brightness
Lighten say X percent, brightness X percent with contrast half X percent, and darken visa versa.
ffmpeg luma burn is supreme ultimate superior end of story IMO
so say I want to lighten 2% it's ffmpeg -vf lutyuv=y=1.02*val
A friend of mine from school been a wedding photographer forever, he shoots RAW and plus a third.
I shoot normal and luma burn two percent pretty much always.
Equipment is getting better, I don't need to plus one percent red in ffmpeg with what I got now Lumix FT7 Lumix G100 Coolpix A1000, I prefer ffmpeg red/cyan blue/yellow to rgb anyday.
The Lumix FT7 pictures could be better, but it's armoured, usb charge, 4K, viewfinder.
My FT4 eventually got trashed out there on the street, and the FT20 didn't last long at all, armoured lite.
The only criticism I got of ffmpeg is unsharp mask is a bit crap, imagemagick is fine, I think Pixlr is based on imagemagick, most of my shots get sharpen 12%, or 15% if it's telephoto, then again equipment is getting better, bit like back in the darkroom, grade 2 paper is normal but for press it's generally grade 3. Or grade 2 and a stronger developer chemical. Anyway, multigrade came around.
I'm not 108 years old, honest!
If I'm moving too fast I'm using what equipment is strapped to my body.
FFmpeg4android is 8MB not installed 23.44MB installed, and Pixlr 2.6.0.
I shoot JPG and convert to PNG in ffmpeg.
Occasionally in a decent interweb cafe I can install artweaver dot de, if I need to do something special.
Jackpal terminal emulator in Android is very flipping handy to tar -cvf -xvf.
Putting a date on the back of a print is important as going in a newspaper and sat across the desk of the duty picture editor, no date, a reach across the desk and slap across the face is acceptable!
I NEVER have ANY files on a network up Android without a tiny program CryptIt 1.4 dhanoopbhaskar (blowfish.)
And QuickPic 4.5.2 is my kit.
apk20 & apkpure & apk4fun are the best.
& Stay Alive 1.9.5.1 by SyNetDev, Keep screen awake
andftp is tiny and awesome
& noroot 4.0.2 is amazing, and Ted editor Xavier Gouchet

aluma
I don't fully understand the artifacts noise at super distances, you don't get it super telephoto closer.
Your through the trees shot is most excellent, all photography is abstract, that beautiful light and colour is not in Yorkshire today!
PK00591.PNG is my panther when he was a few months old, he's definately got some lynx in his DNA.
That was shot at 1248mm on a compact sensor.

I'm from Dobcross over the hill in this picture, still West Riding.
They talk funny over here in Marsden, don't say toad in the hole, say turd in the earl.

Thank you to somebody for moving this off another post and generating this Share your photography! post.
aluma, thank you for putting a huge smile on my face, you are quite correct, there is something wrong with the photo! artefact noise
The above image is a small fraction of the photo, somebody please help and put the full image up if it is to be up on dev1galaxy, I don't know how to do that.
My image is free for all.
Now for whats wrong with it!
The camera is 16MP and the digital crop makes it 13.33MP.
It's a tiny compact sensor, the shooting distance and super telephoto, so the result has these kind of inherent limitations, noise, artefacts.
Of course I only put up a 5MP on my website because of all these thieving government corporations stealing everybodys intellectual property.
The image should be viewed from a distance.
It's the impression.

This post had nearly 500 views.
I wish Robert Shingledecker was here, he's the man.

Super fsmithred thank you.
I will check it out asap.
Right now I'm on a telephone, my laptop is creating a snapshot, and about to make my third and last coffee of the day, I had a bottle of Greek wine yesterday evening, that's one and a half kilos.

I'm sceptical on the firmware, oxymoron comes to mind.
By the way, greek verb, skeptome - I think.

Head_on_a_Stick
Thank you for your info on libreSSL, which I learned a little about browsing these days.

I have Daedalus on my Asus E203N laptop.
Today I did apt-get install linux-image-amd64.
Today I've learned apt-mark hold to prevent firmware-linux-free being installed.
I am inclined to think this is WRONG.

& Securing Debian Manual, not just the latest version, is a whopper. html online & package harden-doc
I secure my home with a highly trained from birth panther!

I boot with Roderick 'Refind' Smith into lets hope fsmithred is Frederick 'Refracta' Smith!

thank you very much fsmithred
The other day I did find the fix in git
As I wrote above, I did the simple edit to line 148
maybe there was something on forums dot debian dot net, about this