Use a camera or phone with portrait/video background blur mode if available
Record in front of a plain, well-lit background to help separation
Increase the distance between the subject and the background
Keep the subject well lit and the background less bright
Use a wide aperture lens setting if your camera supports it
Enable cinematic or portrait video mode on supported devices
Apply background blur in video editing software with subject masking
Use AI subject detection tools to isolate the person and blur everything else
Track the subject frame by frame if the subject moves
Adjust blur strength to keep the subject clear and the background soft
Feather the mask edges for a smoother transition
Export the edited video in the desired resolution and format