Exception reading a CMYK Jpeg
See original GitHub issueWhat steps will reproduce the problem?
1. Generate a CMYK JPG, call it selectedFile
1. Run Thumbnails.of(selectedFile).size(500, 500).toFile(thumb500File);
What is the expected output? What do you see instead?
Expected output - thumb500File created normally
Actual output: Exception raised "Incompatible color conversion"
What version of the product are you using? On what operating system? Which
version of Java (Sun/Oracle? OpenJDK?) ?
OpenJDK 7u9, Ubuntu Linux
Please provide any additional information below.
The core Java method ImageIO.read produces exactly the same exception, e.g.
BufferedImage originalImage = ImageIO.read(selectedFile);
so it looks like the issue is with Java, however other people have found
workarounds -
http://www.randelshofer.ch/blog/2011/08/reading-cmyk-jpeg-images-with-java-image
io/
Would it be possible to implement a workaround in Thumbnailator too? I think
the Java issue dates back some time.
A sample JPG exhibiting the problem is attached.
Original issue reported on code.google.com by oliver.k...@gmail.com
on 1 Nov 2012 at 12:59
Attachments:
Issue Analytics
- State:
- Created 8 years ago
- Comments:7 (1 by maintainers)
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Original comment by
coobird...@gmail.com
on 21 Sep 2014 at 10:41Support for CMYK JPEGs would require writing a JPEG reader that supports it, which is outside the scope of Thumbnailator. (Thumbnailator is a wrapper around the Java 2D and Image I/O APIs.)
TwelveMonkeys ImageIO provides an excellent alternative to Java’s default JPEG reader/writer, which can deal with CMYK JPEGs