Android Question Changing background of camera

[kris A]

Hi i would like to know how to change a background in camera in real time. For example if somebody is standing infront of a white wall, i would like to change the wall to a different background, lets say a picture of the eiffel tower. But this must be done in real time in the camera. So that if the person moves the change of shadows and superimpose is seen in real time. Can somebody help point me out in right direction?

 

[Erel]

There is no simple way to implement this.