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Color Matching 2 DV clips
I’m trying to superimpose 1 DV clip over another, both clips are of the same room, with a verticle cut down the middle so one clip plays on the left of the screen, the other on the right.
The problem I have is, the hue and brightness of the clips are constantly changing as movement occurs in each clip. Presumably this is something to do with my digital camcorder compensating for light/dark amounts as it records!?
What I would like to know is – is there an easy way to force one clip to match the hue & brightness of the other over time?
(I tried the color stablisation effect but it didn’t seem to work very well for me) is there a good plug-in that could help me do this kind of color matching?
btw I tried key-framing hue/saturation and brightness changes over time but it was tedious and I am convinced there is a better way!?
Thanks,
Rick Kelsall -
6 Replies
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Is there any way you can reshoot with the camera’s automatic light meter off?
Otherwise, I know of no other effect other than color stabilizer.
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yes there is – just found it in the manual..
there’s an ‘Auto White Balance’ that sounds like the one!
good job, thanks Steve -
I’m not sure that is going to solve your problem…
First off, it will only change the white balance, it won’t compensate for changes in brightness.
Second, as far as I know, it doesn’t adjust over time, it just does a one time adjustment based on an analysis of the picture.
Basically, I think you should really look into shooting it over again, this time with the camera on manual settings (or locked mode, or whatever abilities your camera has to hold the same settings and not compensate for changes in light).
If not, you’ll be stuck with painful keyframing and adjustment of possibly several effects at the same time. And even then, it still might not look realistic in the end.
Unless someone has a really good solution for you.
Either way, I’d recommend you use some feathering on your masks (assuming you’re using masks to make the vertical cut), to help blend the two pictures together. If you manage to do some color and light correction to make them look similar, this could be the final touch that completes the illution you’re after.
Good luck.
John-Erling Holmenes Fredriksen
Runaround Film
Life of Elling
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color stabalize may do it. it is available on the pro version and is designed to fix brightness problems. you just pick points you want to level out and it does a prety good job. auto color balance won’t work for your problem.
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If you do decide to reshoot and you hope to match up two separate videos like you describe, you may also want to turn off ALL auto features.
Specifically, you’ll want to avoid auto-focus. It may not be as noticeable as the color problems you have now, but if either shot is focused at different depths at the same time you’ll likely see a mysterious line down the middle of your frame.
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and make sure the lighting doesn’t change, as this happened to me before, where the sunlight changed coming through the windows, and the shots had different tones. It wasn’t that difficult to correct though.
Alexander Gao
“When the revolution happens, I’ll be leading it.”
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