Hey everyone  -

Sorry if I post this in the wrong section.  I am currently working on a project that will have the user sitting in the dark watching a video.  Then, at a certain point, if they turn the lights on, then it will play ending A video.  If they don't turn the lights on, then it will play ending B video.  I don't know what the easiest way is to go about this.  Currently I am using OpenCV to play the video, Minim to play the voiceover, and was trying to get JMyron to test for light.  But with JMyron I am clueless on how to get it to just see "is it light, or is it dark?"  Any help would be appreciated on what I should do and if there's a better way I can do it.  Thanks!

Code:

import ddf.minim.*;
import fullscreen.*;
import japplemenubar.*;
import hypermedia.video.*;

AudioPlayer player;
Minim minim;
OpenCV opencv;
boolean remember = false;
FullScreen fs;



void setup() {

  size( 640, 480 );
  fs = new FullScreen(this);
  fs.enter();
  minim = new Minim(this);

  opencv = new OpenCV( this );
  opencv.movie( "video.mpg" );
  
  player = minim.loadFile("song.mp3", 2048);
  
  noCursor();

}

void draw() {

  opencv.read();
  if ( remember ) opencv.absDiff();
  //sopencv.threshold( 200 );
   player.play();
  image( opencv.image(), 0, 0 );
  
 
  
}

void stop()
{
  // always close Minim audio classes when you are done with them
  player.close();
  minim.stop();
  opencv.stop();
  super.stop();
}

 

This Topic was moved here from Exhibition by antiplastik.

the most precise way would be to use an arduino with a light sensor on it: this way you'd be able to mesure exactly the amount of light in the room.

anyway also looking for brightness (or blob dimesnion, or threshold white area, ecc) change would probably work pretty fine.