public void draw() {
if (cam.available() == true) {
cam.read();
pushMatrix();
scale(-1, 1);
translate(-cam.width, 0);
image(cam, 0, 0);
popMatrix();
// image(cam, 0,0);
try {
// Now test to see if it has a QR code embedded in it
LuminanceSource source = new BufferedImageLuminanceSource((BufferedImage) cam.getImage());
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result = reader.decode(bitmap);
// Once we get the results, we can do some display
if (result.getText() != null) {
println(result.getText());
ResultPoint[] points = result.getResultPoints();
// Draw some ellipses on at the control points
for (int i = 0; i < points.length; i++) {
// fill(#ff8c00);
ellipse(points[i].getX(), points[i].getY(), 20, 20);
// fill(#ff0000);
text(i, points[i].getX(), points[i].getY());
}
// Now fetch the book cover, if it is found
if (!result.getText().equals(lastISBNAcquired)) {
String url = "http://covers.oreilly.com/images/" + result.getText() + "/cat.gif";
try {
cover = loadImage(url, "gif");
lastISBNAcquired = result.getText();
} catch (Exception e) {
cover = null;
}
}
// Superimpose the cover on the image
if (cover != null) {
image(cover, points[1].getX(), points[1].getY());
}
}
} catch (Exception e) {
// println(e.toString());
}
}
}
public void setup() {
size(640, 480);
PFont metaBold;
// The font "Meta-Bold.vlw" must be located in the
// current sketch's "data" directory to load successfully
metaBold = loadFont("SansSerif-48.vlw");
textFont(metaBold, 36);
cam = new Capture(this, WIDTH, HEIGHT);
cam.start();
}