jaiSample

    public void compressor(String inputFile, String outputFile) throws IOException {
        J2KImageWriteParam iwp = new J2KImageWriteParam();
        FileInputStream fis = new FileInputStream(new File(inputFile));
        BufferedImage image = ImageIO.read(fis);
        fis.close();

        if (image == null)
        {
            System.out.println("If no registered ImageReader claims to be able to read the resulting stream");
        }

        Iterator writers = ImageIO.getImageWritersByFormatName("JPEG2000");
        String name = null;
        ImageWriter writer = null;
        while (name != "com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageWriter") {
            writer = (ImageWriter) writers.next();
            name = writer.getClass().getName();
            System.out.println(name);
        }
        File f = new File(outputFile);
        long s = System.currentTimeMillis();
        ImageOutputStream ios = ImageIO.createImageOutputStream(f);
        writer.setOutput(ios);
        J2KImageWriteParam param = (J2KImageWriteParam) writer.getDefaultWriteParam();
        IIOImage ioimage = new IIOImage(image, null, null);
        param.setSOP(true);
        param.setWriteCodeStreamOnly(true);
        param.setProgressionType("layer");
        param.setLossless(false);
        param.setCompressionMode(J2KImageWriteParam.MODE_EXPLICIT);
        param.setCompressionType("JPEG2000");
        param.setCompressionQuality(0.1f);
        param.setEncodingRate(1.01);
        param.setFilter(J2KImageWriteParam.FILTER_97);


        writer.write(null, ioimage, param);
        System.out.println(System.currentTimeMillis() - s);
        writer.dispose();
        ios.flush();
        ios.close();

        image.flush();
    }