Eye tracking with movie files and movie files with alpha channel.

JoyPark

Hello :-) I am not good at English, so please understand for poor explanation about my question.

1. I want my mov files to keep changing when another person sees screen.
2. Do you know how to make videos( mov files) in alpha channel? ( I tried to remove the background in After Effect, but it wasn't working)

Could you help me to figure it out?

Thank you so much!

Here is my code!

PImage img;

import gab.opencv.*;

import processing.video.*;

import java.awt.*;

int incMov=0; // i is the increment of the array

Capture video;

OpenCV opencv;

Movie[] myMovies = new Movie[3];


void setup() {

  size(640, 480);

  video = new Capture(this, 640/2, 480/2);

  opencv = new OpenCV(this, 640/2, 480/2);

  opencv.loadCascade(OpenCV.CASCADE_EYE);  

  video.start();

  //movie

   //for (int i=0; i<myMovies.length; i++) {

  myMovies[0] = new Movie(this, "eye2_A.mov" );

  myMovies[0].loop();

  myMovies[1] = new Movie(this, "eye1_A.mov");

  myMovies[1].loop();

  myMovies[2] = new Movie(this, "eye1_RGB.mov");

  myMovies[2].loop();

  //myMovies[0] = new Movie(this, );

  //myMovies[0] = new Movie(this, );


}

void mousePressed(){

  video.stop();
}


  void movieEvent(Movie m){

m.read();
  }


void draw() {

  scale(2);

  opencv.loadImage(video);

  image(video, 0, 0 );



  //opencv.loadImage(movie);


  //rect

  noFill();

  stroke(0, 255, 0);

  strokeWeight(3);

  //detect:

Rectangle[] faces = opencv.detect();

  println("lenght" + faces.length);


 if (faces.length > 0){

    incMov = incMov + 1;

 }  

// use an if to loop back


  for (int i = 0; i < faces.length; i++) {

 image(myMovies[incMov], faces[i].x, faces[i].y, faces[i].width, faces[i].height);

    println("number of movie:" + incMov);

     }
  }


void captureEvent(Capture c) {

  c.read();
} 

kfrajer

Format your code. Edit your post, select your code and press ctrl+o. Please make sure there is an empty line above and below your code. More info at:

https://forum.processing.org/two/discussion/15473/readme-how-to-format-code-and-text#latest

Kf

kfrajer

I have some comments.

I suggest changing the name of video to videoCam or just cam, short for camera. Your code will be more clear, specially because you are using movies (aka. recorded video).

noFill(); stroke(0, 255, 0); strokeWeight(3); should be called in setup() unless you are modifying them continuously in real time. Then you can also call them continuosly in draw().

You need to revise the following code:

  if (faces.length > 0) {
      incMov = incMov + 1;
  }

  // use an if to loop back
  for (int i = 0; i < faces.length; i++) {
    image(myMovies[incMov], faces[i].x, faces[i].y, faces[i].width, faces[i].height);
    println("number of movie:" + incMov);
  }

The previous code is run in draw() so I can see your incMov would be larger than 3. Then myMovies[incMov] will through a null point exception. My suggested correction:

  if (faces.length > 0) {
      incMov = incMov + 1;
      if(incMov >=myMovies.length)
         incMov =0;  //  RESET to first movie!!!!!!
  }

Last but not least, I am not sure what your code does unless you provide the movies.

Kf