Calibrate works?

lib/opencv_processing/examples/OpticalFlow/OpticalFlow.pde

@@ -0,0 +1,36 @@
+import gab.opencv.*;
+import processing.video.*;
+
+OpenCV opencv;
+Movie video;
+
+void setup() {
+  size(568*2, 320);
+  video = new Movie(this, "sample1.mov");
+  opencv = new OpenCV(this, 568, 320);
+  video.loop();
+  video.play();  
+}
+
+void draw() {
+  background(0);
+  opencv.loadImage(video);
+  opencv.calculateOpticalFlow();
+
+  image(video, 0, 0);
+  translate(video.width,0);
+  stroke(255,0,0);
+  opencv.drawOpticalFlow();
+  
+  PVector aveFlow = opencv.getAverageFlow();
+  int flowScale = 50;
+  
+  stroke(255);
+  strokeWeight(2);
+  line(video.width/2, video.height/2, video.width/2 + aveFlow.x*flowScale, video.height/2 + aveFlow.y*flowScale);
+}
+
+void movieEvent(Movie m) {
+  m.read();
+}
+