A sample script in Processing from simple-openni that visualises depth map data from a Kinect

DepthImage.pde

import SimpleOpenNI.*;


SimpleOpenNI  context;

void setup()
{
  context = new SimpleOpenNI(this);
   
  // mirror is by default enabled
  context.setMirror(true);
  
  // enable depthMap generation 
  if(context.enableDepth() == false)
  {
     println("Can't open the depthMap, maybe the camera is not connected!"); 
     exit();
     return;
  }
   
  if(context.enableRGB() == false)
  {
     println("Can't open the rgbMap, maybe the camera is not connected or there is no rgbSensor!"); 
     exit();
     return;
  }
 
  size(context.depthWidth() + context.rgbWidth() + 10, context.rgbHeight()); 
}

void draw()
{
  // update the cam
  context.update();
  
  background(200,0,0);
  
  // draw depthImageMap
  image(context.depthImage(),0,0);
  
  // draw irImageMap
  image(context.rgbImage(),context.depthWidth() + 10,0);
}