图像处理 -Java-TIFF 转换 JPG

    // dependency com.twelvemonkeys.imageio.imageio-tiff.3.10.1  handle no-LZW compress TIF file    public static void tiffToJpg(String tiffFilePath, String jpgFilePath) throws IOException, InterruptedException {        ImageReader reader = ImageIO.getImageReadersByFormatName("TIF").next();        ImageInputStream imageInputStream = new FileImageInputStream(new File(tiffFilePath));        reader.setInput(imageInputStream);
        ImageWriter writer = ImageIO.getImageWritersByFormatName("JPEG").next();        ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(new File(jpgFilePath));        writer.setOutput(imageOutputStream);
        ImageWriteParam param = writer.getDefaultWriteParam();        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);        param.setCompressionQuality(0.8f); // adjust the quality as needed
        int numImages = reader.getNumImages(true);
        int availableProcessors = Runtime.getRuntime().availableProcessors();        ExecutorService executorService = Executors.newFixedThreadPool(availableProcessors);
        for (int i = 0; i < numImages; i++) {            final int imageIndex = i;            executorService.submit(() -> {                try {                    BufferedImage image = reader.read(imageIndex);                    byte[] imageData = extractImageData(image);
                    synchronized (writer) {                        writer.write(null, new javax.imageio.IIOImage(image, null, null), param);                    }                } catch (IOException e) {                    e.printStackTrace();                }            });        }
        executorService.shutdown();        executorService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
        reader.dispose();        writer.dispose();        imageInputStream.close();        imageOutputStream.close();    }
    private static byte[] extractImageData(BufferedImage image) {        Raster raster = image.getData();        DataBufferByte dataBuffer = (DataBufferByte) raster.getDataBuffer();        return dataBuffer.getData();    }
    // dependency org.apache.commons.commons-imaging.1.0-alpha3  handle LZW compress TIF file    public static void tiffToJpg2(String inputFilePath, String outputFilePath) throws IOException {        try {            File inputFile = new File(inputFilePath);            TiffImageParser parser = new TiffImageParser();            BufferedImage image = Imaging.getBufferedImage(new FileInputStream(inputFile), null);                        File outputFile = new File(outputFilePath);            ImageIO.write(image, "jpg", outputFile);                } catch (ImageReadException | IOException e) {            e.printStackTrace();        }    }