@Override
public void init() throws ServletException {
	super.init();
	cs = new ConfigurableCaptchaService();
	cf = new SingleColorFactory(new Color(25, 60, 170));
	wf = new RandomWordFactory();
	crff = new CurvesRippleFilterFactory(cs.getColorFactory());
	drff = new DoubleRippleFilterFactory();
	wrff = new WobbleRippleFilterFactory();
	dirff = new DiffuseRippleFilterFactory();
	mrff = new MarbleRippleFilterFactory();
	cs.setWordFactory(wf);
	cs.setColorFactory(cf);
	cs.setWidth(120);
	cs.setHeight(50);
}