In this article, I will explain how to read HEIC files into Java as a BufferedImage. We also have a related article covering how to write HEIC files in Java.
ImageIO does not read HEIC file types so you will need to use an external library. We believe that JDeli is the only pure Java implementation available so we will document that. If you are looking for a free solution, we recommend the Nokia library on GitHub (which includes Java wrappers).
What is HEIC?
HEIC stands for “High Efficiency Image File Format”. It is a complex lossy file format for storing bitmapped images. It was developed by Apple but is an Open Standard. The file name extension for HEIC files is:
If you are just looking for a Heic Viewer, JDeli includes a built-in Image Viewer.
How to read a HEIC image in Java with JDeli
Step 1 Add JDeli to your class or module path. (download the trial jar).
Step 2 Create a File handle, InputStream pointing to the raw HEIC image. You can also use a byte containing the image data.
Step 3 Read the HEIC image into a BufferedImage
BufferedImage image = JDeli.read(heicFile);
Start reading and writing images with one line of code
BufferedImage image = JDeli.read(streamOrFile);
JDeli.write(myBufferedImage, OutputFormat.HEIC, outputStreamOrFile)