I would like change source camera video by custom camera stream using Vuforia and Unity:

* Take the video stream from the camera (Android cam or Webcam)
* Improve contrast, brightness or other manually (for example through openCV) and add elements or another pattern that could be optimally recognized by Vuforia.
* Resend the modified video stream in Unity 3D and have it detected by Vuforia

It is possible ?
Is there another mode ?