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fcp video filter to clean up surveillance camera footage?
Does anyone know of the best way to make a small B&W surveillance camera footage not so grainy and flickery? I thought that a gaussian blur might help, but it didn’t. Any suggestions are greatly appreciated. I transferred the footage from a grainy VHS tape.
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2 Replies
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Blurring will make it less distinct, sure. But you want it cleared up, right? That’s a sharpening procedure.
Cleaning up really bad footage is a craft. The term is enhancement and there are third party filters that will do a pretty good job of it. Not like the results those crime lab boys and girls get in the “CSI Boise” tv show, but fairly good. Usually takes several copies of the same footage, each with a different type of filter applied to it. Stack them up and apply composite modes till you figure out the combination of layers that gives you a decent result.
You want to sharpen most of the scene but then you want to remove the noise. So you boost the noise to a point where you can key out or transfer-mode out only those pixels to reveal the sharpened layer beneath. The sharpened layer probably needs a slight blur applied to it after it’s been sharpened or you will just put all the noise back in.It’s time consuming and frustrating and ultimately totally unsatisfactory.
bogiesan
This is my standard sigfile so do not take it personally: “For crying out loud, read the freakin’ manual.”
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Virtual Dub on PC has a very capable noise reduction algorithm. It’s very time consuming but I’ve used it on VHS footage and it works.
– Rick
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