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Post screening

Posted: Sat Nov 09, 2019 10:34 am
by foxtail
Hi!
Reject - Underexposed
https://imgproc.airliners.net/photos/ai ... 99d18e7469

Underexposed - in my understanding is a dark photo. But I don't understand the dark / normal criterion. This photo was taken at dusk and the live "picture" in eyes was much darker. I usually focused on the histogram but it doesn’t work here, the photos are already unnaturally lightened, in light colors there are already losses. How to determine when the photo underexposed, and when normal?

Thanks!

Re: Post screening

Posted: Sun Nov 10, 2019 9:54 am
by airkas1
There is room for improvement on the right side of the histogram.

Re: Post screening

Posted: Sat Dec 07, 2019 8:07 pm
by foxtail

Re: Post screening

Posted: Sat Dec 07, 2019 10:40 pm
by jelpee
Could use a bit of additional contrast but does not look blurry to me.

Jehan

Re: Post screening

Posted: Sun Dec 08, 2019 8:14 am
by johnr
There are screeners on this site who see the whole world as blurry.

Re: Post screening

Posted: Sun Dec 08, 2019 11:44 am
by Crosswindphoto
johnr wrote:
There are screeners on this site who see the whole world as blurry.


If you don’t like the site, stop using it. Complaining in forums that aren’t yours is just wrong.

Blurriness varies from screener to screener, monitor to monitor. Screeners are human, and some humans see things differently than other humans.

You don’t like uploading/using this site? Move to another one, no ones going to stop you.

Re: Post screening

Posted: Sun Dec 08, 2019 12:43 pm
by airkas1
I don't find the fueslage/nose blurry, but not sure of the winglet. Probably a benefit of the doubt for me.

Re: Post screening

Posted: Sun Dec 08, 2019 6:21 pm
by foxtail
Thx jelpee, airkas1

Re: Post screening

Posted: Fri Dec 13, 2019 11:49 pm
by foxtail

Re: Post screening

Posted: Sat Dec 14, 2019 2:12 am
by Starfuryt
the reg definitely looks blurry to me

Re: Post screening

Posted: Sun Dec 15, 2019 2:13 pm
by airkas1
Looks a bit overexposed and a little marginal. Soft tiles. Otherwise passable for me I think.

Re: Post screening

Posted: Sun Dec 15, 2019 6:29 pm
by foxtail
airkas1 wrote:
Looks a bit overexposed and a little marginal. Soft tiles. Otherwise passable for me I think.


Thx.
I absolutely agree with "overexposed" but I had to turn up after "underexposed". Sometimes I don't really understand this game. ) There is still some problem of oversharp when reducing the resolution of the image. What is the best way to avoid this?

Re: Post screening

Posted: Sun Dec 15, 2019 9:37 pm
by jelpee
I find that if you reduce image size in steps it tends to mute the oversharpening. e.g. full size --->1600 pix; 1600 pix --->1200 pix.

Jehan

Re: Post screening

Posted: Wed Dec 18, 2019 11:59 pm
by foxtail
Thank you, Jehan!

Re: Post screening

Posted: Sun Mar 22, 2020 6:16 pm
by foxtail
Please explain what is "underexposed". This is a constant cause of rejection.
Is it dark? Is it dark in the shadows? Is this a low contrast?
I uploaded such a photo - underexposed
https://imgproc.airliners.net/photos/ai ... 4d40f5d0bc

OK. I thought this was a dark photo, but here it’s heavily lit up with losses in the light, a day was made from the pre-sunset evening, but still "underexposes".

https://imgproc.airliners.net/photos/ai ... 18065fc036

Re: Post screening

Posted: Thu Mar 26, 2020 12:27 pm
by JakTrax
'Underexposed' it s a little misleading as, even with a better exposure, the light is simply against you. One for the personal collection only I feel (perhaps the screener should have put a note to that effect?).

Karl

Re: Post screening

Posted: Fri Mar 27, 2020 6:03 pm
by foxtail
The light falls to the left of the plane, this can be seen by the reflection of light, just a dark livery against a brighter sky. But maybe you're right, sometimes interest disappears to continue.

Re: Post screening

Posted: Fri Mar 27, 2020 6:14 pm
by foxtail
Runway аligned - reject CCW
https://imgproc.airliners.net/photos/ai ... ad8a211119

Vertical mast aligned - reject CW
https://imgproc.airliners.net/photos/ai ... 32244cc71f

What to focus on when aligning?

What is the "Quality" problem? Is the photo acceptable with this light and contrast condition?

Re: Post screening

Posted: Fri Mar 27, 2020 9:55 pm
by Kaphias
foxtail wrote:
Runway аligned - reject CCW
https://imgproc.airliners.net/photos/ai ... ad8a211119

Vertical mast aligned - reject CW
https://imgproc.airliners.net/photos/ai ... 32244cc71f

What to focus on when aligning?

What is the "Quality" problem? Is the photo acceptable with this light and contrast condition?

Nothing - it's whatever "feels" level. Same as vertical centering. Which is probably a bit low on both these.

Re: Post screening

Posted: Sat Mar 28, 2020 2:11 pm
by JakTrax
A few of those buildings suggest CCW needed but others are fine — they don't look like the best structures to judge level. I think you definitely overdid it with the second image — perhaps only 0.1 degrees of rotation required.

Seems a bit harsh looking at some images that made it in over the last few days...
https://www.airliners.net/photo/Austria ... vnTWMMc%3D

Karl

Re: Post screening

Posted: Wed Apr 01, 2020 4:18 pm
by foxtail
Thx Karl and Mathew