Sylwia Dorota Kedzia Sylwia is a Java developer. She is very passionate about programming and all things Polish.

How to Read JPEG2000 in Java

39 sec read

JPEG2000 icon

In this article, I will talk you through how to read JPEG2000 images into a BufferedImage in Java. We also have a related article covering how to write JPEG2000 files in Java.

ImageIO provides support for JPEG2000 using JJ2000 (originally written around 2000). It produces poor results with a lot of our sample images (black spots on white images) and is not complete. So we felt it was time to add a modern implementation to JDeli using Java8.

How to read a JPEG2000 image in Java with ImageIO

Step 1 Create a File, InputStream, or URL pointing to the raw JPEG2000 image.
Step 2 ImageIO will now be able to read a JPEG2000 file into a BufferedImage. This syntax is like so:

BufferedImage image = ImageIO.read(jpg2000FileOrInputStreamOrURL)

How to read a JPEG2000 image in Java with JDeli

Step 1 Add JDeli to your class or module path. (download the trial jar).
Step 2 Create a File, InputStream pointing to the raw JPEG2000 image. You can also use a byte[] containing the image data.
Step 3 Read the JPEG2000 image into a BufferedImage

BufferedImage image = JDeli.read(jpeg2000File);


Download your JDeli guide:

How to read, write and process common image file Formats in Java with JDeli

Start reading and writing images with one line of code

Read: BufferedImage image = JDeli.read(streamOrFile);

Write: JDeli.write(myBufferedImage, OutputFormat.HEIC, outputStreamOrFile)

Learn more >>

Sylwia Dorota Kedzia Sylwia is a Java developer. She is very passionate about programming and all things Polish.

What is JPEG2000?

Alicia
54 sec read

What is PSD?

chika
52 sec read

What is PNG?

Mark Stephens
36 sec read