geycoo@hotmail.com

I'm a student starting with Jitter, and i need some help.. I'm trying to substract the color of the background on a webcam to insert the forground on another movies. I use the example "10jChromakey" to start, but i can't select the color (blue) on the image of the webcam. 

hello,
I'm a student starting with Jitter, and i need some help.. I'm trying to substract the color of the background on a webcam to insert the forground on another movies. I use the example "10jChromakey" to start, but i can't select the color (blue) on the image of the webcam. 
Can someone help me?
Thanks 
Greg


background-substraction-on-a-webcam

You need the cv library to that, here is sample patch :

Hi Greg,
You need the cv library to that, here is sample patch :

I would need such patch, but it's impossble to paste this, maybe it's too old or I don't know. Actually I downloaded the cv.jit plugin, but I have no idea how to do any kind of background substraction. I have the basic pacth how to substract a person from the still backgorund->now I have a person with black bg, and I would be very happy to find any solution how to make it transparent...

I would need such patch, but it's impossble to paste this, maybe it's too old or I don't know. Actually I downloaded the cv.jit plugin, but I have no idea how to do any kind of background substraction. I have the basic pacth how to substract a person from the still backgorund->now I have a person with black bg, and I would be very happy to find any solution how to make it transparent...
Thax for any help!


Wow, the patch by recyclism actually works great! I first assumed it was a standard patch that came with cv, but it surely isn't.

This is an excellent starting point to continue development of my body-pose tracking app.

Background substraction on a webcam