Replacing ImageIO with the JDeli image library

What is ImageIO?

ImageIO is the built-in Java Image library for reading, writing and working with Images in Java. If you are using Java, you have it automatically installed.

What is JDeli?

JDeli is the best enterprise-level Java image library for image manipulation. We created JDeli to be a better alternative to ImageIO. It supports additional formats not handled by ImageIO and can work with existing ImageIO code.

Why replace ImageIO with JDeli?

The reasons customers use JDeli are:-

• Support for formats not handled by ImageIO (ie AVIF, HEIC, WEBP)
• Better support for JPEG, PNG, TIF formats compared to ImageIO
• JDeli is pure Java so will not crash JVM due to lack of native heap
• JDeli plugin allows JDeli to be used with existing ImageIO code (often with no changes)
• JDeli has a similar API to ImageIO with additional functionality so easy to switch

How to use JDeli with ImageIO

It’s actually very simple and can be done without rewriting your existing code!

For example, the code below does not work with ImageIO for HEIC images without the JDeli plugin

// Read HEIC image into Java with ImageIO

BufferedImage bufferedImage = ImageIO.read(new File("heicImageFile.heic"));

// Write out BufferedImage as HEIC image file with ImageIO

ImageIO.write(bufferedImage, "heic", new File("output.heic"));

• Download the JDeli trial jar with our ImageIO plugin
• Follow the support documentation to install

How to use JDeli directly

We have added read, write and convert methods so that you can easily write new JDeli commands in your code. JDeli can also do image processing for you.

You can see some examples below….

// Read an image
BufferedImage bufferedImage = JDeli.read(avifImageFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(dicomImageFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(heicImageFile);

// Write an image
JDeli.write(bufferedImage, "heic", outputStreamOrFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(jpegImageFile);

// Write an image
JDeli.write(bufferedImage, "jpeg", outputStreamOrFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(jpeg2000ImageFile);

// Write an image
JDeli.write(bufferedImage, "jpx", outputStreamOrFile);

// Write an image
JDeli.write(bufferedImage, "pdf", outputStreamOrFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(pngImageFile);

// Write an image
JDeli.write(bufferedImage, "png", outputStreamOrFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(tiffImageFile);

// Write an image
JDeli.write(bufferedImage, "tiff", outputStreamOrFile);

// Read an image
BufferedImage bufferedImage = JDeli.read(webpImageFile);

// Write an image
JDeli.write(bufferedImage, "webp", outputStreamOrFile);