The contrast in colors makes it easier to distinguish you in the foreground from the bright background. This method improves the sharpness and definition of the virtual background effect around your face, head, ears, and hair. This method requires you have a solid-colored screen, curtain, or wall behind you, which Zoom will replace the selected color with the image or video you selected. Virtual Background with a green screen provides the best virtual background effect and uses less system resources during the meeting. Prerequisites for video conferencing virtual backgrounds
You can also use Virtual Background in a Zoom Room, or a simpler Mask Background feature in the web client. Lastly, if you don't have your own images or videos for use as a virtual background, you can use nothing and just blur the background instead. Just as with a virtual background without a green screen, a video virtual background requires more system resources, and thus has higher system requirements.
Additionally, instead of a static image, the virtual background feature, with or without a green screen, allows you to select short videos as your virtual background.
