Den Ivanov blog.

import JMyron.*;
import processing.opengl.*;

JMyron m;
PImage img;
MultiARToolKit ar;
int capWidth, capHeight;

void setup() {
size(800, 600, OPENGL);
capWidth = 640;
capHeight = 480;
m = new JMyron();
m.start(capWidth, capHeight);
m.findGlobs(0);
img = createImage(capWidth, capHeight, ARGB);
ar = new MultiARToolKit(this, capWidth, capHeight);
ar.addPattern("patt.hiro", 80, 0.0f, 0.0f,"displayCube");
ar.addPattern("patt.kanji", 80, 0.0f, 0.0f,"displaySphere");
lights();
stroke(0);
}

void draw() {
background(0);
m.update();
System.arraycopy(m.image(),0,img.pixels,0,capWidth*capHeight);
img.updatePixels();
hint(DISABLE_DEPTH_TEST);
image(img,0,0,width,height);
hint(ENABLE_DEPTH_TEST);
ar.showObjects(img,100);
}

void displayCube(MultiARToolKit _a) {
fill(0,255,0);
translate(0,0,40);
box(80,80,80);
}