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deinterlace!!!
UPFRONT QUESTION: How can I deinterlace a couple of clips of video?
I’m working on adding some animation–nothing fancy–to a couple of clips of video that are going to be PROJECTED, like on a projector, as part of an art installation. I didn’t shoot the video. . .it’s ANNOYINGLY interlaced.
I’ve read other posts here advising not to mess with the default settings when it comes to project properties and interlacing. Left it alone, interlaced. Tried the two other scan methods–upper field first, progressive. . .plus blend AND interpolate fields–and it still looks ugly.
I know that other television screens–i.e. those that aren’t laptop screens–‘know’ how to treat the video to make a good image. BUT, this project is going to be running video off laptops to projectors. . .several cpus-to-projector arrangements, all linked up to run in sequence, to create a ‘gestalt’ of seemless video. . .or, that’s the plan. In any case, owing to needing to control the sequence, we can’t use DVD players.
SO. . .is there a chance I’ll be okay with this setup, even though the video is interlaced as hell? Or is there something else I can do.
I fiddled around with one of the clips, and managed to resolve some of this by doing a little vertical gaussian blur, but the other clip can’t afford to lose the definition.
. . .blah. . .
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4 Replies
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SO. . .is there a chance I’ll be okay with this setup, even though the video is interlaced as hell? Or is there something else I can do.
As long as you render your final video as progressive, Vegas will deinterlace the footage properly.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Tried it. With both clips of video, rendered as uncompressed progressive AVIs, with also trying out different field order settings in the project properties–trying out both ‘lower field first’ and progressive scan.
In every instance there was interlacing. BUT, something I thought I would put mention, here, is that under the ‘project media’ readings, Vegas reports that the ‘field order [is] unknown’ with the videos I’m trying to work with.
They’re quicktimes, of some type.
I think I’m going to go to the producer and try and get a hold of an earlier generation of the media to try and see what I can do with the footage. . .one whose field order Vegas can at least tell/recognize. I have a serious belief that earlier editing went all screwy.
I dunno. . .Thanks anyway, John.
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It’s quite possible that some previous editing on the videos has messed up the interlacing – perhaps the original footage was interlaced and it has been transcoded/rendered as progressive without proper deinterlacing. I’ve seen this on some Quicktime clips, but it’s probably not Quicktime’s fault.
If you can see obvious combing (horizontal lines and jagged verticals) when you play back the affected videos in any media player, they’re probably badly deinterlaced already. Try using GSpot or MediaInfo to check the video properties of the affected files.
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BUT, something I thought I would put mention, here, is that under the ‘project media’ readings, Vegas reports that the ‘field order [is] unknown’ with the videos I’m trying to work with.
I agree with Matt’s assessment. Something messed up the interlacing on these videos before you got them and it sounds like it’s not something you can correct without going back to the source video before it got messed up.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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