I have been trying to reduce the opencv noise with the code below, I am roughly getting the idea of how to do it but I think the problem is at the implementation level.

Please somebody help me with the implementation part......

Idea: the idea is the take 3-5 frames and average the position of the rect.

code:

import hypermedia.video.*; 
import java.awt.Rectangle; 

OpenCV opencv; 

void setup() { 

size( 320, 240 ); 

opencv = new OpenCV(this); 
opencv.capture( width, height ); 
opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT ); 

void draw() { 

opencv.read(); 
image( opencv.image(), 0, 0 ); 
Rectangle[] faces = opencv.detect(); 

noFill(); 
stroke(255,0,0); 
for( int i=0; i<faces.length; i++ ) { 

rect( faces[i].x, faces[i].y, faces[i].width, faces[i].height ); 
  } 
}