portauthority Posted September 5, 2008 Share Posted September 5, 2008 Is it possible to "erase" the background of a video clip - make it transparent so I can paste it into an another video? I only have access to Adobe Premiere Pro CS3, and I really don't care if it is complex and involved, I just want to know how to do it. Do I have to split the video clip into images and then erase it from there? Link to comment Share on other sites More sharing options...
Soldiers33 Posted September 5, 2008 Share Posted September 5, 2008 dont u need to use the greenboard? Link to comment Share on other sites More sharing options...
CelticWhisper Posted September 5, 2008 Share Posted September 5, 2008 The problem is this...what part of the clip is the background? I know that you and I know what the "background" is, but how does Premiere know that? Unless you're using some kind of multi-layered video format, it's going to involve isolating moving versus stationary parts of the video and extracting one while blanking the other. Traditionally this is why blue/green screens were used, to make it easier to isolate actors from the environment. Not easy, though motion-detection tools have gotten a lot better. Link to comment Share on other sites More sharing options...
grid001 Posted September 5, 2008 Share Posted September 5, 2008 The problem is this...what part of the clip is the background? I know that you and I know what the "background" is, but how does Premiere know that? Unless you're using some kind of multi-layered video format, it's going to involve isolating moving versus stationary parts of the video and extracting one while blanking the other. Traditionally this is why blue/green screens were used, to make it easier to isolate actors from the environment.Not easy, though motion-detection tools have gotten a lot better. Celtic nailed it. Your going to have to do some extensive masking\animating... Link to comment Share on other sites More sharing options...
neufuse Veteran Posted September 5, 2008 Veteran Share Posted September 5, 2008 Unless you have a chroma key to "erase" it will be very hard to do Link to comment Share on other sites More sharing options...
Lasker Posted September 5, 2008 Share Posted September 5, 2008 I think after effects cs3 can do that, not sure about it. Link to comment Share on other sites More sharing options...
portauthority Posted September 6, 2008 Author Share Posted September 6, 2008 I know why people do it on green backdrops but this is a clip recorded in a outside environment I know I need to do most of the work myself but how do I get started? Should I output the clip to GIFs, make them transparent, and rejoin them? Link to comment Share on other sites More sharing options...
CelticWhisper Posted September 6, 2008 Share Posted September 6, 2008 You'll need to output each frame to a still image, erase the undesired parts in GIMP/Photoshop/Fireworks/MSPaint/what-have-you and then re-import them into the video. Mind you that NTSC video is juuuuuuuust shy of 30FPS, so you're going to need to do 30 erasures for each second of video you have. If you've got the will to do so, then you are a greater videographer than I. Link to comment Share on other sites More sharing options...
stfu. Posted September 6, 2008 Share Posted September 6, 2008 You can do it the way CelticWhisper just said - if you have a lot of time to waste and don't mind dying of boredom. Or simply, download the Adobe After Effects CS3 trial and rotoscope (keyframing a mask) which will be quick and will definitely look better if you do it properly. Link to comment Share on other sites More sharing options...
portauthority Posted September 7, 2008 Author Share Posted September 7, 2008 Now does the trial watermark the output file or anything? Link to comment Share on other sites More sharing options...
adokilla Posted October 7, 2008 Share Posted October 7, 2008 can anyone give me adive on how to do keyframing a mask ? thank you Link to comment Share on other sites More sharing options...
_kane81 Posted October 20, 2008 Share Posted October 20, 2008 mydamnchannel.com See you suck at photoshop -in the latest season there is an episode where he breaks up video into frames for editing / removing ;) Link to comment Share on other sites More sharing options...
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