Optimized Image Creation

public BufferedImage importImage(String filePath, int transparency) throws IOException{
    BufferedImage rawImage = ImageIO.read(this.getClass().getResource(filePath));
    BufferedImage optimizedImage = getGraphicsConfiguration().createCompatibleImage
    (rawImage.getWidth(), rawImage.getHeight(), transparency);
    optimizedImage.getGraphics().drawImage(rawImage, 0, 0, null);
    return optimizedImage;
}

public BufferedImage createImage(int x, int y, int transparency){
    return getGraphicsConfiguration().createCompatibleImage(x, y, transparency);
}