Isolate image from background and superimpose
Hi all,
I have isolated a live camera image from the background using jit.op absdiff. The resulting image is unusable, therefore I am looking for a way to superimpose the original camera matrix on top of it, perhaps by turning the black part of the absdiff matrix to alpha.
What I essentially want to be able to do is see whoever is in front of the camera without the background, and be able to put whatever I want in that background, 3d models for instance. Any help would be appreciated!
Regards,
Edwin
Perhaps post your patch for more specific help? Tried something like jit.lumakey or jit.alphablend for isolating the black areas?
Hey folks, I know this is an old thread, but I am trying to do the same thing. Anyone come up with a good solution?
Okay so I am trying to figure this one out. I would appreciate any feedback.
I looked in to both jit.lumakey and jit.alphablend, they are not quite what I think is needed. Here is my test patch so far...
I think the problem is a little more complicated. These are the steps I really need to do...
1. take a video clip that has motion in the foreground and a static background.
2. I want to create a mask of the background (maybe alphamask or chorma mask)
3. Composite in a new background using the mask I created.
4. Overlay the captured foreground delta of the original clip to cover any anomalies.
Does this sound right?
plenty of techniques found on the forum by searching background subtraction.
here's one: