slit-scan video code from http://www.flong.com/texts/lists/slit_scan/ updated to work with processing 2.2.1

slit-scan.pde

import processing.video.*;
Capture C;
int X=0;

void setup() {
  size(640, 480);

  String[] cameras = Capture.list();
  
  if (cameras.length == 0) {
    println("There are no cameras available for capture.");
    exit();
  } else {
    println("Available cameras:");
    for (int i = 0; i < cameras.length; i++) {
      println(cameras[i]);
    }
    
    // The camera can be initialized directly using an 
    // element from the array returned by list():
    C = new Capture(this, cameras[0]);
    C.start();  
  } 

}

void draw() {
  if (C.available()) {
    C.read();
    copy(C, (C.width/2),0,1,C.height, (X++%width),0,1,height);
  } else {
    System.out.println("not avail");
  }

}