This Java tip demonstrates a method of drawing on a buffered image. This involves creating a graphics context on the buffered image.

 // No. 1
    // Create a graphics context on the buffered image
    Graphics2D g2d = bimage.createGraphics();
    
    // Draw on the buffered image
    g2d.setColor(Color.red);
    g2d.fill(new Ellipse2D.Float(0, 0, 200, 100));
    g2d.dispose();

    // No.2
    // In case the buffered image supports transparency

    g2d = bimage.createGraphics();
    
    // Transparency is created on all the filled pixels
    Color transparent = new Color(0, 0, 0, 0);
    g2d.setColor(transparent);
    g2d.setComposite(AlphaComposite.Src);
    g2d.fill(new Rectangle2D.Float(20, 20, 100, 20));
    g2d.dispose();