In Camtasia, go to the visual effects menu and choose the "remove a colour" option. All you have to do now is drag and drop the clip. As easy as that!
You've probably heard some of these phrases before, and they all relate to the same thing. The green screen effect is a post-production method that combines (layers) two pictures or video streams depending on colours (chroma range). The method has been widely employed to eliminate a backdrop from the subject of a photograph or video, most notably in the newscasting, motion picture, and video game industries.
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