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Removing haze in airborne photos / videos

Peter wrote:

It works ok for me just now. However… just noticed the original URL was slightly different at the end so I edited it.

Problem solved!

ESKC (Uppsala/Sundbro), Sweden

It works ok for me just now. However… just noticed the original URL was slightly different at the end so I edited it.

Administrator
Shoreham EGKA, United Kingdom

Peter wrote:

Someone here has just sent me this amazing site where some somewhat specialised software is used to remove haze.

I get “502 bad gateway”…?

ESKC (Uppsala/Sundbro), Sweden

Peter wrote:

This video shows the problem

@17:24 hahahaha

Last Edited by Dimme at 07 Dec 12:30
ESME, ESMS

Someone here has just sent me this amazing site where some somewhat specialised software is used to remove haze.

Administrator
Shoreham EGKA, United Kingdom

I have been playing with this stuff on videos.

A fairly effective fix is to increase contrast about 15% at altitude (say FL150) and reduce blues a few %. Maybe even increase the greens a tiny bit.

The problem is that, if say you are filming an approach, as you descend you need to gradually reduce these corrections, to zero. Well, zero if the camera is any good and you aren’t shooting through a tinted window.

It can be done in the more upmarket editors using “FX animation”. One thread is here where someone kindly showed me how. I had tried it in the past but could not work it out, but yesterday I got it working. In Vegas Pro you can set up any number of timeline-animated profiles for stuff like colour correction.

This video shows the problem


I will upload a final version (same URL) later this morning. The FX taper isn’t quite obvious; one needs almost no correction below say 2000ft.

I suspect people are more critical with stills than with movies, because movies have more distractions. But it is still good to get it roughly right…

Administrator
Shoreham EGKA, United Kingdom

This Italian site looks potentially interesting. It seems to show how to use a filter, and some post-processing, to reduce haze.

Administrator
Shoreham EGKA, United Kingdom

Here is another take on this – involving a near-IR image.

I have just received some absolutely stunning results, privately, from a specialist in IR imaging.

Whether this is practical I don’t know. CCD cameras will all detect near-IR but they normally have a filter to block it, because it focuses in a different plane to visible light and would cause out of focus photos. There was also a bit of a scandal in 1998 when it was discovered that Sony camcorders with a removable IR filter would see through clothing And you don’t really want to use another camera to get the IR image…

Administrator
Shoreham EGKA, United Kingdom

Yes, it’s the ‘Creative Cloud’ version which is subscription only.

This is the new online-purchase-only version?

Administrator
Shoreham EGKA, United Kingdom
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