Fixing lighting in background at DVinfo.net

Go Back   DV Info Net > Cross-Platform Post Production Solutions > Digital Compositing and Effects

Digital Compositing and Effects
After Effects, Shake and everything else.


Reply
 
Thread Tools Search this Thread
Old October 7th, 2008, 02:31 PM   #1
Major Player
 
Join Date: May 2006
Location: Boston, Massachusetts
Posts: 425
Fixing lighting in background

Here's what happened:

I got permission to film in an actual diner. We started in the afternoon, and did our last scene just as the sun was setting.

The action takes place in a booth right up against the windows. We had the curtains drawn, but obviously there's light from outside.

Except for the last scene we shot, were it is noticeably darker outside. This can't be explained in the story, it's an obvious continuity problem. I was thinking there might be a way in compositing to help this?
Dennis Stevens is offline   Reply With Quote
Old October 7th, 2008, 10:22 PM   #2
Regular Crew
 
Join Date: Oct 2006
Location: Canberra, Australia
Posts: 78
Hi Dennis,

Any chance you can post a couple of frame grabs to show what the two different lighting states are like? And, what compositing software do you have access to?

Cheers
Pat
PJ Gallagher is offline   Reply With Quote
Old October 8th, 2008, 07:39 AM   #3
Major Player
 
Join Date: May 2006
Location: Boston, Massachusetts
Posts: 425
I tried doing that, I keep getting 'Request Entity Too Large'. The files are .bmp, and 2.63 MB which seems under the legal limit.

Any ideas?
Dennis Stevens is offline   Reply With Quote
Old October 8th, 2008, 05:10 PM   #4
Regular Crew
 
Join Date: Oct 2006
Location: Canberra, Australia
Posts: 78
You can email them to me if you like. Although please note that I may be of absolutely no use to you whatsoever ;-)

pat(at)caliburnproductions.com
PJ Gallagher is offline   Reply With Quote
Old October 9th, 2008, 04:00 AM   #5
Regular Crew
 
Join Date: Feb 2008
Location: Kent, UK
Posts: 101
See if you can save the frame grabs as JPG or PNG, as BMP will alwyas be too large, but jpg or PNG are compressed and will be a lot smaller.
Chris Coulson is offline   Reply With Quote
Old October 10th, 2008, 04:11 PM   #6
Major Player
 
Join Date: May 2006
Location: Boston, Massachusetts
Posts: 425
That seems to have worked!
Attached Thumbnails
Fixing lighting in background-darkerscene.jpg   Fixing lighting in background-lighterscene.jpg  

Dennis Stevens is offline   Reply With Quote
Old October 10th, 2008, 04:45 PM   #7
Inner Circle
 
Join Date: Nov 2005
Location: Elk Grove CA
Posts: 6,838
Maybe those grabs aren't representative, but it doesn't look that off. What software are you using. Have you thought of selecting out the curtain area, and just adjusting levels so they will be closer ? In her shot, I notice it is a bit translucent, and I assume that is more what issue is ? Are the shots lock down or is there camera movement during shots. Is it possible to reshoot current and do background replacement.
__________________
Chris J. Barcellos
Chris Barcellos is offline   Reply With Quote
Old October 11th, 2008, 08:33 AM   #8
Major Player
 
Join Date: May 2006
Location: Boston, Massachusetts
Posts: 425
Yeah, that's pretty representative. Basically it's only the 'darkerscene.jpg.' bit, which isn't very long, that's the problem.

Maybe I could even leave it as is, and suffer the slings and arrows of people who dig into stuff like that. But it would be nice to fix it, or make it less noticeable.

You are correct, it is the translucent light coming through the curtains.

I have Adobe Production Studio CS, so I have Premiere Pro CS, Adobe AE CS, Photoshop, Illustrator, etc.
Dennis Stevens is offline   Reply With Quote
Old October 11th, 2008, 12:10 PM   #9
Major Player
 
Join Date: Jan 2008
Location: Utrecht, NL | Europe 3rd Rock from the Sun
Posts: 612
From the look of it you should be able to pull a luma mask off of the curtains; it will take some cleaning up, but if you feather it you can use it to just brighten these up.

You can also double up the footage in AE and play with the blending modes and layer opacity to brighten up the scene.

If the highlights are headlights (from cars) you could duplicate the footage and timeshift it a bit, then track the lights for a moving mask. Only if the curtains are not moving and you are locked down.

George/

Last edited by George Kroonder; October 12th, 2008 at 04:20 AM. Reason: Bad grammar
George Kroonder is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Cross-Platform Post Production Solutions > Digital Compositing and Effects

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 03:12 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network