Unable to read JPEG image using ImageIO.read(File file)

java image jpeg javax.imageio
Malakim picture Malakim · Mar 9, 2010 · Viewed 74.9k times · Source

I'm having problems reading this one JPEG file using ImageIO.read(File file) - it throws an exception with the message "Unsupported Image Type".

I have tried other JPEG images, and they seem to work fine.

The only differance I've been able to spot is that this file seems to include a thumbnail - is that known to cause problems with ImageIO.read()?

Troublesome image

EDIT:

Added the resulting image:

Strange colors

Answer

haraldK picture haraldK · Apr 22, 2013

Old post, but for future reference:

Inspired by this question and links found here, I've written a JPEGImageReader plugin for ImageIO that supports CMYK color models (both with original color model, or implicitly converted to RGB on read). The reader also does proper color conversion, using the ICC profile embedded in the JPEG stream, in contrast to other solutions mentioned here.

It's plain Java and does not require JAI. The source code and binary distributions are freely available at github.com/haraldk/TwelveMonkeys, and is covered by a BSD-style license.

Once you have it installed, it allows you to read CMYK JPEGs using ImageIO.read(...) like this:

File cmykJPEGFile = new File(/*path*/);
BufferedImage image = ImageIO.read(cmykJPEGFile);

I.e.: In most cases, it's not necessary to modify your code.

Related questions

ImageIO not able to write a JPEG file

I have a BufferedImage I'm trying to write to a jpeg file, but my Java program throws an exception. I'm able to successfully save the same buffer to a gif and png. I've tried looking around on Google for solutions, …

Read More
How do you create a thumbnail image out of a JPEG in Java?

Can someone please help with some code for creating a thumbnail for a JPEG in Java. I'm new at this, so a step by step explanation would be appreciated.

Read More
How to identify contents of a byte[] is a JPEG?

I have a small byte array (under 25K) that I receive and decode as part of a larger message envelope. Sometimes this is an image, furthermore it is a JPG. I have no context information other than the byte array, …

Read More