public SaveImage() {
		try {
			bi = ImageIO.read(new File("gfx/bg.png"));
			w = bi.getWidth(null);
			h = bi.getHeight(null);
			if (bi.getType() != BufferedImage.TYPE_INT_RGB) {
				BufferedImage bi2 = new BufferedImage(w, h,
						BufferedImage.TYPE_INT_RGB);
				Graphics big = bi2.getGraphics();
				big.drawImage(bi, 0, 0, null);
				biFiltered = bi = bi2;
			}
		} catch (IOException e) {
			System.out.println("Image could not be read");
			System.exit(1);
		}
	}