我有这种将BufferedImage写入IIOImage的代码。我的问题是原始照片仍然比新生成的图像具有更好的质量（我需要在图像上写一些数据并且我正在使用Graphics2D）。第二个问题是，新映像的大小比原始映像大得多（原始1.7MB，新的4.8MB）。完成此操作的其他方法是使用ImageIO.write（），但随后图像我无法设置压缩质量。有什么办法可以将byte []转换为BufferedImage，然后使用Graphics2D在图像上写入一些内容，然后获得质量良好且尺寸相同的新图像吗？

   private void getJPGBytes(BufferedImage bi,ByteArrayOutputStream baos,String format) {
        try {
            JPEGImageWriteParam jpegParams = new JPEGImageWriteParam(null);
            jpegParams.setCompressionmode(ImageWriteParam.MODE_EXPLICIT);
            jpegParams.setCompressionQuality(1L);

            final ImageWriter writer = ImageIO.getImageWritersByFormatName(format).next();
            writer.setOutput(ImageIO.createImageOutputStream(baos));

            writer.write(null,new IIOImage(bi,null,null),jpegParams);
            writer.dispose();
        } catch (IOException e) {
            throw new RuntimeException(e.getMessage());
        }
    }
    public byte[] drawData(byte[] bytes,List<AIResponse> data) {
        try {
            ImageReader reader = ImageIO.getImageReadersBySuffix(getExtensionFromImage(bytes)).next();
            reader.setInput(ImageIO.createImageInputStream(new ByteArrayInputStream(bytes)));

            BufferedImage bi = reader.read(0);
            Graphics2D g2d = (Graphics2D) bi.getGraphics();

            g2d.setColor(new Color(168,61,40,255));
            Stroke stroke = new BasicStroke(5.0f,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
            g2d.setStroke(stroke);

            for (AIResponse aiResponse : data) {
                Polygon poly = new Polygon();

                aiResponse.getcoordinates().forEach(coordinate -> {
                    poly.addPoint(coordinate.get(0).intvalue(),coordinate.get(1).intvalue());
                });
                g2d.drawPolygon(poly);
            }

            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            String format = getExtensionFromImage(bytes).toLowerCase();
            if (format.equals("jpg") || format.equals("jpeg")) {
                getJPGBytes(bi,baos,format);
            } else {
                getPNGBytes(bi,bytes);
            }
            bytes = baos.toByteArray();

        } catch (IOException e) {
            throw new ApplicationException(e.getMessage());
        }
        return bytes;
    }