Iterator<ImageWriter> iterator = ImageIO.getImageWritersByFormatName("jpeg");          ImageWriter imageWriter = iterator.next();          ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam();          imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);          imageWriteParam.setCompressionQuality(1);           imageWriter.setOutput(imageOutput);          IIOImage iio_image = new IIOImage(image, null, null);          imageWriter.write(null, iio_image, imageWriteParam);          imageWriter.dispose();