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Color Correction
I have a problem with some footage I got from an outside vendor. It appears that the video has no blue channel. The color bars at the beginning of the tape are (from left to right) white, light-pink, bright aqua, darker-aqua, hot pink, reddish-hot-pink, dark forest green.
If I take my blue levels and push them all the way up, everything has a blue tint to it, but you can tell the colors look like what they’re supposed to be.
How can I correct this? I have AE7 and final cut pro/color
–Aaron
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10 Replies
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I’d demand a new tape. Why should you have to compromise the program by messing with levels that much?
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I wish I could, but it’s the original tape, and it was a city-wide event that will not happen again.
I want to know, IS there a way to fix this in post, or is all hope lost?
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I have spoken with the vendor, and they are seeing what they can do.
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Got a screengrab of the bars that you can upload to the web?
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Yow! That’s garbage! Somebody unplugged a cable or something.
Do not accept that. You’ll get horrible noise trying to fix it.
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I’m assuming that you’ve checked your own cables and path from Deck to capture system against a known good tape?
Did the the folks who provided the footage give you a dub?
Was this footage recorded to a Camera VTR or from cameras to deck? I just wondered since the Color bars are generated internally on the camera.
At the very least the company who recorded it should not charge you for the shoot. This should have been something that was caught and corrected prior to the event.I just had a camera where the Red CCD went out resulting in a blue/green picture..however the color bars are fine. Luckily I caught this problem and re-scheduled a shoot with other equipment.
Erik
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Unfortunately, this tape came straight out of their camera and into my hands. For the remainder of this post, lets assume that there is no way of simply attaining a new copy.
Also, the cables in our studios are fine, I checked those.
I thought for sure there would be a way to correct for this, but from what I am hearing in this thread, there is no possible way to “create” a blue channel and add it to the image. Is this correct?
–Aaron
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Correct. You can fix problems with balance (not enough of one, too much of another), but when you have one entire channel missing you can’t make that up. Best you could hope for is B&W, which just uses the luminance.
Erik
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You’ll never make great-looking video from originals without a blue channel. However, I have come up with usable footage using the channel-mixer effect to “create” a missing channel from the green.
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