Manipulating Camera Frames

[Sujith-PS]

Hi
Thanks for the great tutorial and Appreciate your effort
I came across a requiremnt in my sample app to change the background of the camera frames like when a person is doing a video call .i need to manipulate the frame and change the background of the person(bokhe/image) before it is rendering to a textureview
i use following method to achieve the frames

public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
}
I had gone through your tutorial and didntt find the frame manipulation and all.I am a beginner to image processing.Can you suggest some directions to achieve the functionality
Thanks in Advance