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Help: replace mouse cursor with face tracking

[2 Replies]
- 06-Apr-2012 05:53 PM
- Forum: Contributed Library Questions
Hello!

I need help with something i'm doing...

First of all I want to do this: https://vimeo.com/18499643

That is an interactive display and I want to use the face tracking to know the position on "x" of the face of the person that is walking in front of the "Interactive Display". With the position of the face, I will know the time in that the video is.

I already have the face recognition using the OpenCV library and I´m using the GSVideo library to manipulate the time of a video with the mouse pointer, but i don't know how to replace the mouse pointer with the face tracking, I don´t know how to combine that codes. Could someone help me how to do this please. :D

------------------------------------------------

This is the face recgnition code:
1. import hypermedia.video.*;
  
  import java.awt.Rectangle;
  
  OpenCV opencv;
  
  // contrast/brightness values
  
  int contrast_value = 0;
  
  int brightness_value = 0;
  
  void setup() {
  
  size( 320, 240 );
  
  opencv = new OpenCV( this );
  
  opencv.capture( width, height ); // open video stream
  
  opencv.cascade( OpenCV.CASCADE_PROFILEFACE ); // load detection description, here-> front face detection : "haarcascade_frontalface_alt.xml"
  
  // print usage
  
  println( "Drag mouse on X-axis inside this sketch window to change contrast" );
  
  println( "Drag mouse on Y-axis inside this sketch window to change brightness" );
  
  }
  
  public void stop() {
  
  opencv.stop();
  
  super.stop();
  
  }
  
  void draw() {
  
  // grab a new frame
  
  // and convert to gray
  
  opencv.read();
  
  opencv.convert( GRAY );
  
  opencv.contrast( contrast_value );
  
  opencv.brightness( brightness_value );
  
  // proceed detection
  
  Rectangle[] faces = opencv.detect( 1.2, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 40, 40 );
  
  // display the image
  
  image( opencv.image(), 0, 0 );
  
  // draw face area(s)
  
  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 );
  
  }
  
  }
  
  /*
  
  * Changes contrast/brigthness values
  
  */
  
  void mouseDragged() {
  
  contrast_value = (int) map( mouseX, 0, width, -128, 128 );
  
  brightness_value = (int) map( mouseY, 0, width, -128, 128 );
  
  }
And this is the code to manipulate the video with the mouse:
1. import codeanticode.gsvideo.*;
  
  GSMovie movie;
  
  void setup() {
  
  size(640, 480);
  
  background(0);
  
  movie = new GSMovie(this, "video1.mov");
  
  // Pausing the video at the first frame.
  
  movie.play();
  
  movie.goToBeginning();
  
  movie.pause();
  
  }
  
  void movieEvent(GSMovie movie) {
  
  movie.read();
  
  }
  
  void draw() {
  
  // A new time position is calculated using the current mouse location:
  
  float f = constrain((float)mouseX / width, 0, 1);
  
  float t = movie.duration() * f;
  
  if (movie.ready()) {
  
  movie.play();
  
  movie.jump(t);
  
  movie.pause();
  
  }
  
  image(movie, 0, 0, width, height);
  
  }

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