OVEREXPOSURE

JohnJ wrote on 8/4/2013, 8:09 AM
Hello,
I recently took some outside video in overcast weather, but now and then the sun came out briefly but it was very bright while it lasted. As a result, some of the video is overexposed.
Please can anybody advise me if it is possible to apply a correction and how it is done?
Thanks
JohnL

Comments

rs170a wrote on 8/4/2013, 8:20 AM
Help with Over Exposure!
Look for the post by malowz

Mike
malowz wrote on 8/4/2013, 8:20 AM
how about a snapshot so we can see the "severity" of the overexposure?
PeterDuke wrote on 8/4/2013, 8:25 AM
You may be able to recover a little by adjustment of brightness and contrast, but essentially what is burnt out completely is gone forever.

In future, if the sun suddenly pops out, wait for the automatic brightness control to adjust before panning further, or retake the scene again.

The same problem can occur if you are panning and the area of bright sky is changed too quickly.
Byron K wrote on 8/4/2013, 1:42 PM
I had a similar problem w/ a multicam shoot a couple of weeks ago where the sun was setting and the camera didn't adjust to well and a certain section of the scene was over exposed.

You can split the scenes that are over exposed and copy them to another track.
-if the over exposure is the same over all the clips adjust the brightness and color corrections at the track level. If the brightness varies over different events then brightness and color correction will need to be applied to each event BUT all you have to do is use FX chain to get the scene correction in the ballpark and fine tune the adjustment.

Replace/combine the over exposed scene with the corrected one or create a mask w/ feathering that outlines only the corrected portion.

If the shot is steady you can have the mask mimic a shadow line.
JohnJ wrote on 8/5/2013, 1:18 AM
Thanks, I will try what you suggest
John_Cline wrote on 8/5/2013, 2:41 AM
Also, try adding this FX chain:

Invert > Levels > Invert

Then go to the Levels FX and adjust the gamma slider. This will tame the overexposed whites without affecting the mid and dark tones. If this doesn't work, it is likely that the image was so overexposed that it clipped and there is no information to be retrieved.
musicvid10 wrote on 8/5/2013, 10:08 AM
How about that snapshot . . . ?
(Crystal ball is at the cleaners.)
jason-duncan wrote on 4/24/2023, 8:20 AM
Also, try adding this FX chain:

Invert > Levels > Invert

If the two Inverts are equal, don't they cancel each other out?
Reyfox wrote on 4/24/2023, 8:51 AM

@jason-duncan you do realize that this post is almost 10 years old....

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jason-duncan wrote on 4/24/2023, 9:03 AM
Help with Over Exposure!
Look for the post by malowz

Mike

Isn't that why old posts are still accessible? So folks can do a search pertaining to their problem?

Reyfox wrote on 4/24/2023, 9:11 AM

Yes. I understand why posts are still here. But what is your purpose of quoting a 10 year old post with a question in it?

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jason-duncan wrote on 4/24/2023, 2:14 PM

I did a search for color correcting overexposed video and ran across this Invert/Levels/Invert trick. Rather than starting a new post about fixing overexposed video for fear of someone saying it's already been covered, I wanted to ask specifically about I/LI. That's why I quoted a previous post.

john_dennis wrote on 4/24/2023, 3:04 PM

@jason-duncan

"If the two Inverts are equal, don't they cancel each other out?"

The inverts cancel each other, but the effect of the whole process is to change the way the levels filter works.

https://www.vegascreativesoftware.info/us/forum/can-you-please-help-me-fix-this-over-exposed-video-clip-sony-vegas16--115933/?page=1#ca719705

https://www.vegascreativesoftware.info/us/forum/can-you-please-help-me-fix-this-over-exposed-video-clip-sony-vegas16--115933/#ca720018

jason-duncan wrote on 4/24/2023, 3:27 PM

Thanks john-dennis. I have to admit I added I/L/I to my trouble spots and was able to get much better results than just regular Color Corrector and Brightness/Contrast FX and didn't have to waste 8 hours. Didn't realize the Inverts affects the way Levels work.