How to convert TIFF to JPEG/PNG in java

Question

recently i\'m facing problem when try to display an image file. Unfortunately, the image format is TIFF format which not supported by major web browser (as i know only Safar

Answer 1

If your target is Android, you could try this great Java library on Github that provides many utilities for handling, opening, and writing .tiff files.

A simple example from that Git showng how to convert TIFF to JPEG:

TiffConverter.ConverterOptions options = new TiffConverter.ConverterOptions();
//Set to true if you want use java exception mechanism
options.throwExceptions = false; 
//Available 128Mb for work
options.availableMemory = 128 * 1024 * 1024; 
//Number of tiff directory to convert;
options.readTiffDirectory = 1;         
//Convert to JPEG
TiffConverter.convertTiffJpg("in.tif", "out.jpg", options, progressListener);

Answer 2

1. Add dependency

    <dependency>
    <groupId>com.github.jai-imageio</groupId>
    <artifactId>jai-imageio-core</artifactId>
    <version>1.3.1</version> </dependency>
   

https://mvnrepository.com/artifact/com.github.jai-imageio/jai-imageio-core

https://mvnrepository.com/artifact/com.github.jai-imageio/jai-imageio-core/1.3.1

2. Coding

   final BufferedImage tif = ImageIO.read(new File("test.tif"));
   ImageIO.write(tif, "png", new File("test.png"));
   

Answer 3

In case of many pages, working following:

1. add dependency:

   <dependency>
       <groupId>com.github.jai-imageio</groupId>
       <artifactId>jai-imageio-core</artifactId>
       <version>1.4.0</version>
   </dependency>
   

2. use following Java8 code

   public void convertTiffToPng(File file) {
   try {
       try (InputStream is = new FileInputStream(file)) {
           try (ImageInputStream imageInputStream = ImageIO.createImageInputStream(is)) {
               Iterator<ImageReader> iterator = ImageIO.getImageReaders(imageInputStream);
               if (iterator == null || !iterator.hasNext()) {
                   throw new RuntimeException("Image file format not supported by ImageIO: " + file.getAbsolutePath());
               }
   
   
               // We are just looking for the first reader compatible:
               ImageReader reader = iterator.next();
               reader.setInput(imageInputStream);
   
               int numPage = reader.getNumImages(true);
   
               // it uses to put new png files, close to original example n0_.tiff will be in /png/n0_0.png
               String name = FilenameUtils.getBaseName(file.getAbsolutePath()); 
               String parentFolder = file.getParentFile().getAbsolutePath();
   
               IntStream.range(0, numPage).forEach(v -> {
                   try {
                       final BufferedImage tiff = reader.read(v);
                       ImageIO.write(tiff, "png", new File(parentFolder + "/png/" + name + v + ".png"));
                   } catch (IOException e) {
                       e.printStackTrace();
                   }
               });
           }
       }
   } catch (IOException e) {
       e.printStackTrace();
   }
   }
   

Answer 4

Had gone through some study and testing, found a method to convert TIFF to JPEG and sorry for pending so long only uploaded this answer.

SeekableStream s = new FileSeekableStream(inFile);
TIFFDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", s, param);
RenderedImage op = dec.decodeAsRenderedImage(0);

FileOutputStream fos = new FileOutputStream(otPath);
JPEGEncodeParam jpgparam = new JPEGEncodeParam();
jpgparam.setQuality(67);
ImageEncoder en = ImageCodec.createImageEncoder("jpeg", fos, jpgparam);
en.encode(op);
fos.flush();
fos.close();

otPath is the path that you would like to store your JPEG image. For example: "C:/image/abc.JPG";
inFile is the input file which is the TIFF file

At least this method is workable to me. If there is any other better method, kindly share along with us.

Answer 5

First, take a look to What is the best java image processing library/approach?. For your code you can use

javax.imageio.ImageIO.write(im, type, represFile);

like you can see in write an image to file example.