Your computer must meet the system requirements in order to use Virtual Backgrounds.
Zoom supports “virtual backgrounds” – pictures or movies that can be set as your background to obscure whatever is behind you on camera. A variety of Wharton Virtual Backgrounds are available for download:
This feature works best with a solid background (or a green screen), and even lighting. If Zoom cannot distinguish between you and the background, you will not achieve the desired effect.
Using Virtual Backgrounds
Zoom has some documentation about how to set your virtual background in a couple of scenarios:
Note: When changing your virtual background during a meeting the change takes place immediately and is visible to all meeting attendees (unless you’ve muted your video).