I need some way to read certain JPEG 2000 images using Java and load them into a BufferedImage. I’ve been using JAI-ImageIO to read the JPEG 2000 images, since regular ImageIO.read doesn’t support that format. I first made a custom jp2 image using an image editor and the Java program ran smoothly and loaded the image. But that was just a test. The real images are around 100MB in size. However, whenever I run the code on them, I get this error:
Exception in thread "main" java.lang.RuntimeException: An uncaught runtime exception has occurred at com.sun.media.imageioimpl.plugins.jpeg2000.J2KReadState.initializeRead(J2KReadState.java:708) at com.sun.media.imageioimpl.plugins.jpeg2000.J2KReadState.<init>(J2KReadState.java:209) at com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReader.read(J2KImageReader.java:449) at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1468) at java.desktop/javax.imageio.ImageIO.read(ImageIO.java:1315) at JPEG2000Handler.getImage(JPEG2000Handler.java:18) at JPEG2000Handler.main(JPEG2000Handler.java:13) Caused by: java.io.IOException: File too long. at jj2000.j2k.fileformat.reader.FileFormatReader.readFileFormat(FileFormatReader.java:207) at com.sun.media.imageioimpl.plugins.jpeg2000.J2KReadState.initializeRead(J2KReadState.java:418) ... 6 more
It says "File too long". I did some searching and found this thread Loading JPEG2000 Images using JAI, with the exact same problem as me. According to the thread, the problem was not the file size, but the box size within the jp2 file (whatever that means). The thread also provided a link to the source of the exception https://github.com/Unidata/jj2000/blame/073c3878e4f7799e55d5ff93bc130d01c4260b6d/src/main/java/ucar/jpeg/jj2000/j2k/fileformat/reader/FileFormatReader.java#L149, but also said that JJ2000 doesn’t support this file. I’ve spent weeks desperately looking for a way to read JPEG 2000 files using Java, but nothing’s working. I’ve checked out JDeli, but it’s not free. I just need some way to load these files, it doesn’t even have to use JAI.
Any ideas would be much appreciated, since it’s starting to seem impossible.