Hi All,
I've done a search, but may have missed this...
In VideoStudio 9 is is possible to apply a chromakey to a background in the video footage while simultaneously appling an overlay to that same footage?
i.e. a person stands in front of a bluescreen which is then chromakeyed while a border is applied to the overall video?
Or would I have to process the chromakey video first - export it to MPEG (say) and then take the new file back into VS9 and apply the overlay ontop of the new video?
Any help much appreciated!
Paul
Chromakey Background and top overlay?
Moderator: Ken Berry
RE: Chroma Keying in VS9
Hi, Paul,
Yes, there has been a lot of discussion about chroma keying recently. Do a search for chroma key and you'll find them.
To use it in VS9, place the video you shot in front of the blue/green screen on Overlay. Put your background clip in the timeline. Select the chroma keyed clip and you'll have the option under "Attribute" to click on "Mask and Chroma Key" and you can figure it out from there.
The only problem that I'm having with it is getting the lighting correct for the green screen. The only place I have large enough to use it comfortably is in a 3 foot wide hallway that has no overhead light. So I'm having to shoot through an open doorway.
Enjoy...
Mathis...
Yes, there has been a lot of discussion about chroma keying recently. Do a search for chroma key and you'll find them.
To use it in VS9, place the video you shot in front of the blue/green screen on Overlay. Put your background clip in the timeline. Select the chroma keyed clip and you'll have the option under "Attribute" to click on "Mask and Chroma Key" and you can figure it out from there.
The only problem that I'm having with it is getting the lighting correct for the green screen. The only place I have large enough to use it comfortably is in a 3 foot wide hallway that has no overhead light. So I'm having to shoot through an open doorway.
Enjoy...
Mathis...
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PoC
Cheers!
Producing the chromakey video isn't a problem, it's doing that at the same time as having an border overlay?
On the subject of chromakey I got a bilious green fabric that works well - covering c. 5 square metre area for only £10. Kept taught with clamps and using bright (even as possible) illumination.
Still it's the 2nd? overlay that's the question!
Producing the chromakey video isn't a problem, it's doing that at the same time as having an border overlay?
On the subject of chromakey I got a bilious green fabric that works well - covering c. 5 square metre area for only £10. Kept taught with clamps and using bright (even as possible) illumination.
Still it's the 2nd? overlay that's the question!
Okay, I don't understand why you're confused, Paul, but I took a clip of me in front of the "green screen" and put it in the "Overlay" field. Then I put a couple of video clips that came with previous versions of VS that I had on hand, and here is an image shot of that clip.
My problem is my space and lighting. Otherwise my left arm wouldn't have been chopped off. You won't have that problem since you have enough space and lighting for your chroma key fabric.
Hope this helps, Paul.
Mathis...
My problem is my space and lighting. Otherwise my left arm wouldn't have been chopped off. You won't have that problem since you have enough space and lighting for your chroma key fabric.
Hope this helps, Paul.
Mathis...
PoC wrote:Cheers!
Still it's the 2nd? overlay that's the question!
Ah, Paul,
I think I figured out your question. Unlike the way they do it on TV with the Weather, we do not get to video the background and what is in front of the "green/blue" screen at the same time. We have to get the background video into our computer, then we take what we tape in front of the "green/blue" screen and put the former in the "Edit" timeline on the story board, and the later in the "Overlay" timeline.
Hope this helps.
Mathis...
I think I figured out your question. Unlike the way they do it on TV with the Weather, we do not get to video the background and what is in front of the "green/blue" screen at the same time. We have to get the background video into our computer, then we take what we tape in front of the "green/blue" screen and put the former in the "Edit" timeline on the story board, and the later in the "Overlay" timeline.
Hope this helps.
Mathis...
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rwindeyer
Hi Paul - if I understand the question..
This could be done in a two part procedure. First lay down the original video, with a border in the overlay track. Then render to one video file. Place the resulting video file (complete with border) in the video track and do your chroma keying.
Hope that helps.
This could be done in a two part procedure. First lay down the original video, with a border in the overlay track. Then render to one video file. Place the resulting video file (complete with border) in the video track and do your chroma keying.
Hope that helps.
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PoC
Thank you for the replies everyone, they have been very helpful!
I thought that might be the case, so I must...
Render a movie first with chromakey (or border first whichever way), then put that rendered movie back through VS9 again to obtain the 2nd overlay.
Fair enough!
My follow on question from that would be - is there any appreciable degredation in image quality from re-rendering an already rendered movie clip? Any suggestions for working resolutions/settings in such a case?
Paul
I thought that might be the case, so I must...
Render a movie first with chromakey (or border first whichever way), then put that rendered movie back through VS9 again to obtain the 2nd overlay.
Fair enough!
My follow on question from that would be - is there any appreciable degredation in image quality from re-rendering an already rendered movie clip? Any suggestions for working resolutions/settings in such a case?
Paul
Paul, since you can set VS to not re-render anything that doesn't need to be re-rendered, I think that's the default setting, there shouldn't be any degredation.
PoC wrote:
My follow on question from that would be - is there any appreciable degredation in image quality from re-rendering an already rendered movie clip? Any suggestions for working resolutions/settings in such a case?
Paul
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rwindeyer
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MikeGunter
Hold on...
Making a chromakey and rendering it out does degrade the image.
One can do this a couple time without much consequence, but each render adds some artifacts.
Try taking a piece, applying a filter and render a second or two. Do it again and again.
At some point fairly quickly, one can see noticable artifacts.
Mike
Making a chromakey and rendering it out does degrade the image.
One can do this a couple time without much consequence, but each render adds some artifacts.
Try taking a piece, applying a filter and render a second or two. Do it again and again.
At some point fairly quickly, one can see noticable artifacts.
Mike