如何更改barcode4j在primefaces上生成的条码img的大小

import org.krysalis.barcode4j.impl.code128.Code128Bean;
import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;

public class BarcodeBean {
    private int width;
    private int height;

    public void generateBarcode(String data, String filename) {
        try {
            Code128Bean bean = new Code128Bean();
            final int dpi = 150;

            bean.setModuleWidth(0.20);
            bean.doQuietZone(false);

            BitmapCanvasProvider canvas = new BitmapCanvasProvider(
                    dpi, BufferedImage.TYPE_BYTE_BINARY, false, 0);

            bean.generateBarcode(canvas, data);

            canvas.finish();

            // Save the generated barcode image
            File outputFile = new File(filename);
            ImageIO.write(canvas.getBufferedImage(), "png", outputFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    // Getters and setters for width and height properties
}

<p:graphicImage value="#{barcodeBean.barcodeUrl}" />