Question Looking for a Video-Backdropping tool

[FredRdr88]

I want to be able to take a video of a human being, then have the video superimposed on a completely different background than the original. I have to sometimes video something in a confined space where I don't have the option to have a nice background. So I want to be able to try out different backgrounds hopefully without a lot of using a magic wand to select the subject, although the subject will NOT be moving and so I could literally simply select the subject (such as in GIMP where you select an image to make it transparent). I am hoping to NOT have to do this frame by frame. I know how to separate an image from it's background, but I want an entire video to be separated from it's background. This could run on Linux, Windows, or even a cellphone would probably be ok.

 

[TerryLaze]

It's 2023, pretty much any webcam app will do that, you just need to have a monochrome background, the better webcams do this no matter what the background is but you do get a decent amount of feathering (area around the person without the effect)