Currently I am working on a project that will involve:
-detecting faces
-recording when a face is detected
-stop recording when a face is detected
-replay this footage with the face removed

Right now I have a base code that accomplishes deleting the face by using a copy of the image stored (background image) when the space bar is hit.  However, I need to have it record the face in video, then replay it, and this action triggered by the detection of a face.  Any suggestions of how to go about doing this?  Also, I know that there is a way to change the size of the rectangle placed around the face detected, but how do I go about doing that?  I've done it before in simpler programs, but I can't seem to do it now.  This project will be used for a video installation.


current code is:


// This program takes a single image when you press any key (background image)
// it then detects faces and replaces the face area with
// the background image

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

OpenCV opencv;

void setup() {

   
    size( 640, 480 );

    opencv = new OpenCV(this);
    opencv.capture( 320, 240 );
 
     // face recognition
    opencv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT );    // load the FRONTALFACE description file
  
}

void draw() {
   
    opencv.read();
    // display the current video feed
    image( opencv.image(), 0, 0 );
   
    // detect anything ressembling a FRONTALFACE
    Rectangle[] faces = opencv.detect();
   
    // draw detected face area(s)
    fill(255,0,0);
    stroke(255,0,0);
    for( int i=0; i<faces.length; i++ ) {
     
      // copy a specific area from the image in memory (the background)
      // place the copy exactly where the face is in the current image
      rectMode(CENTER);
      copy(opencv.image(OpenCV.MEMORY),faces[i].x,faces[i].y,faces[i].width,faces[i].height,faces[i].x, faces[i].y,faces[i].width,faces[i].height);

    }
   
    // display the image in memory
    image( opencv.image(OpenCV.MEMORY), 329, 0 ); 
   
}

// When a key is pressed, capture the background image

void keyPressed() {

    opencv.remember();  // store the actual image in memory
}





Thanks