Chroma Key Composition
Chroma key compositing or chroma keying is a common technique to remove the background (typically green) from one or a sequence of images. The background is typically replaced with transparent pixels and then the images are composed with any other background.
RemoveBackground replaces green pixels of the image with fully transparent pixels.
Compose the foreground over a slightly blurred background to also get an out-of-focus effect.
Apply chroma key compositing to all frames of a video.