我试图压缩一张图像上传到S3 Bucket，但图像压缩后，压缩图像的大小比原来的大。从227KB-〉236KB谁能给我解释一下为什么会发生这种情况？
下面是我的代码：

BufferedImage bufferedImage = ImageIO.read(photoFile);
 File compressedImageFile = new File("compressed_image.jpeg");
 OutputStream outputStream = new FileOutputStream(compressedImageFile);

 Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpeg");
 ImageWriter imageWriter = writers.next();

 ImageOutputStream imageOutputStream =  ImageIO.createImageOutputStream(outputStream);
 imageWriter.setOutput(imageOutputStream);

 ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam();

  if (imageWriteParam.canWriteCompressed()) {
                    imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
  imageWriteParam.setCompressionQuality(0.5f);
  }
    imageWriter.write(null, new IIOImage(bufferedImage, null, null), imageWriteParam);

  log.info("Close stream");
  outputStream.close();
  imageOutputStream.close();
  imageWriter.dispose();

这是我的照片：个-227 KB个-236 KB
我尝试更改压缩质量，但似乎不起作用，并且在某些情况下会发生此问题，但不是所有情况