How to Convert jpeg image into jpeg2000 lossless compression image?

Question

I am compressing a image using java.

I want to compress the image in jpeg2000 lossless.

Please suggest solution.

File imageFile = new File("C:\\Users\\Public\\Pictures\\Sample Pictures\\Chrysanthemum.jpg");
File compressedImageFile = new File("C:\\Users\\Public\\Pictures\\Sample Pictures\\decompjai.jpg");

InputStream is = new FileInputStream(imageFile);
OutputStream os = new FileOutputStream(compressedImageFile);

BufferedImage image = ImageIO.read(is);

// get all image writers for JPG format
Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jp2k");

if (!writers.hasNext())
    throw new IllegalStateException("No writers found");

ImageWriter writer = (ImageWriter) writers.next();

J2KImageWriter
J2KImageWriteParam jwp =  (J2KImageWriteParam) writer.getDefaultWriteParam();
// J2KImageWriteParam jwp =  new J2KImageWriteParam();
boolean lossless = true;
jwp.setLossless(lossless);  

// jwp.setFilter(J2KImageWriteParam.FILTER_97);  
if (!lossless) {  
      jwp.setEncodingRate(8.0 / 2);  
}  

// ByteArrayOutputStream baos = new ByteArrayOutputStream();  
try {  
      ImageOutputStream ios = ImageIO.createImageOutputStream(os);  
      writer.setOutput(ios);  
      writer.write(null, new IIOImage(image, null, null), jwp);  
      ios.flush();  
      ios.close();  
} catch (IOException e) {  
      e.printStackTrace();  
}

I am trying with the above code.

why JPG2000 and not other lossless formats like PNG? And in which format do you get the image? File, downlaod, Bitmap...? — Gumbo, Sep 04 '14 at 09:33
What have you got so far? It'll be easier to help you if you can provide some context in the form of code... — ZeroOne, Sep 04 '14 at 09:42
You can use the Imagemagick.http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=17374. There are few commands, you can sneek-in easily using it. — Tech Enthusiast, Sep 04 '14 at 11:26
In what way does the code you posted above not work for you? Include relevant stack traces, error messages, samples of broken images, etc in your question. — Harald K, Sep 04 '14 at 13:46

score 2 · Answer 1 · answered Sep 04 '14 at 09:37

2

Check out this JPEG2000 Java Encoder/Decoder project. (you can find the source code here)

answered Sep 04 '14 at 09:37

Gumbo

1,716
1
15
22

Is another example you know means please post. The above link i cannot able to find some fruitful examples. – Sivam Sep 04 '14 at 09:44
1

@Sivam You are expected to read the DOCUMENTATION yourself. SO is not a coding service. – Durandal Sep 04 '14 at 12:28

score 0 · Answer 2 · answered Sep 04 '14 at 09:40

0

I'd first try javax.ImageIO as your system may have a provider for the JPEG2000 format.

Otherwise: http://www.deic.uab.cat/~francesc/ is apparently for java.

answered Sep 04 '14 at 09:40

Alex

24
3

How to Convert jpeg image into jpeg2000 lossless compression image?

2 Answers2