问如何在没有松散dpi的情况下降低图像的分辨率？

EN

public void resize(InputStream input, OutputStream output, int width, int height) throws IOException {
    BufferedImage src = ImageIO.read(input);
    BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = dest.createGraphics();

    AffineTransform at = AffineTransform.getScaleInstance((double)width / src.getWidth(), (double)height / src.getHeight());
    g.drawRenderedImage(src, at);
    ImageIO.write(dest, "tif", output);
    output.close();
}