staxas

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!

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. 

isolate-image-from-background-and-superimpose

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.

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...

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.

plenty of techniques found on the forum by searching background subtraction.

Isolate image from background and superimpose