How To Put Green Screen On Imovie Iphone

You can record video in front of the green backdrop in the Digital Media Lab, and then "cut out" the subject and superimpose it over another video clip or image. This is called a green-screen (or blue-screen) effect. For example, you could record a friend dancing in front of a green or blue backdrop, and then place that video over a clip showing a starry sky, so that your friend appears to be dancing in the sky.

You can also drag the green-screen clip over a solid-color or animated background clip.

The audio from the original clip and the audio from the green-screen or blue-screen clip play simultaneously. You can reduce the volume of either clip so that sound from the other clip stands out. For more information, see Apply audio effects to clips.

Use a green-screen effect:

In the timeline, select a clip or range that you shot against the green backdrop, and drag it above a clip in your project.

When you see the green Add icon (+), release the mouse button.

Timeline showing clip being dragged above another clip to connect it

2. If the video overlay controls aren't shown, click the Video Overlay Settings button.

Video Overlay Settings button in adjustments bar

3. Click the pop-up menu on the left and choose Green/Blue Screen.

In the viewer, the clip shot against the green or blue backdrop has the green or blue removed, and the clip below shows through the areas that were green or blue, creating a composite image.

The color that iMovie removes is based on the dominant color in the frame at the position of the playhead when you choose Green/Blue Screen from the pop-up menu. If the frame below the playhead isn't representative of the rest of the clip, you may need to reposition the playhead and reapply the effect.

To reposition the green-screen or blue-screen clip, drag it to a different spot within the clip, or to a different clip. You can also drag the ends to lengthen or shorten it.

4. To apply the changes, click the Apply button in the Green/Blue Screen controls.

Adjust a green-screen effect:

Select the green-screen clip you want to adjust.
If the Green Screen controls aren't shown, click the Video Overlay Settings button.

Video Overlay Settings button in adjustments bar

3. Do any of the following:

Adjust the softness of the edges of the superimposed clip: Drag the Softness slider.

Green/Blue Screen controls

Isolate areas of the green-screen or blue-screen clip: Click the Crop button, and then drag the corners of the frame to isolate the subject in the foreground clip.
Clean up areas of the green-screen or blue-screen clip: Click the Clean-up button, and then drag across stray parts of the green-screen or blue-screen clip that should not be showing.

Each time you drag, iMovie uses the new selection to determine what should be cleaned up.

4. To apply the change, click the Apply button in the Green/Blue Screen controls.