how to change video background in imovie without green screen

You can see actually the shape of the photo that's there that it expects to have there now. If I move my MacBook you can see it really begins to have a problem. If I shake it a bit you're going to see more of those. So all those artifacts that you see like up and down here that's all because my desk isn't perfectly stable. So now I can hit the Record button and it will start recording the video and now I get video recorded with a green screen.

Even a slight movement will cause the problem. So if I move my MacBook then it will have to reset back there. But if I ever wanted it to I can go to View, Reset Effect and it will ask me to step out again. I'm going to say use this backdrop and it already knows the background here so it doesn't ask me to step out of the frame again. If I go to Effects here notice that I can go to the last section here and I've got these different backdrops that are called User Backdrops. Now you don't have to just settle for these presets. You can see people moving and walking around.

You can also see it's not a still picture. There a little bit of issues there at the bottom of the Eiffel Tower. You notice it's not perfect but it's still pretty good. It knows what was there before so I'm the difference. So now I can get back in and you can see it simulates a green screen. What it's going to do then is it's going to get a picture of what's behind me and then when I come back in the frame it's going to subtract that. I'm going to click on that and it's going to ask me to step out of the frame. So let's use the Eiffel Tower one as a simple example. The second to the last one has got these green screen effects with preset backgrounds. I'm going to go to the second to the last one.

I'm going to switch to video here and I'm going to then click on Effects. Photo Booth is an app that's great because it allows you to take pictures with your isight camera so that can come in handy. So you've got this all on your Mac and it just uses the isight camera built into your Mac. I'm going to use Photo Booth to create a green screen without green screen. I just have a white wall and I've even added a picture. Notice I don't have the normal black fabric background here. I'm going to show you how to use the Photo Booth app that comes with your Mac to record with a green screen effect. Video Transcript: So something a little different today. Check out Photo Booth Green Screen at YouTube for closed captioning and more options.

How to change video background in imovie without green screen