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Kakadu is a closed-source library to encode and decode JPEG 2000 images. It implements the ISO/IEC 15444-1 standard fully in part 1, and partly in parts 2–3. Kakadu is a trademark of NewSouth Innovations Ltd.

Kakadu was developed by and continues to be maintained by David Taubman from University of New South Wales (UNSW), Australia. He is also an author of EBCOT, one of the algorithms used in JPEG 2000.

The software library is named after Kakadu National Park.

It is used by several applications, such as for example Apple Inc. QuickTime. It is also used in Google Earth and the online implementation thereof as well as Internet Archive.

Kakadu library is heavily optimized and is a fully compliant implementation. Also, it has built-in multi-threading. In a 2007 study Kakadu outperformed the JasPer library in terms of speed. A more thorough comparison done in 2005, however, has shown that Kakadu does not achieve the best performance, in terms of compression quality.

See also

• Grok (JPEG 2000)
• OpenJPEG

References

1. "Downloads – Kakadu Software". kakadusoftware.com. Retrieved 2021-04-13.
2. ^ Peter Schelkens; Athanassios Skodras; Touradj Ebrahimi (12 October 2009). The JPEG 2000 Suite. John Wiley and Sons. pp. 458–459. ISBN 978-0-470-72147-6. Retrieved 22 October 2010.
3. Google Inc., Legal Notices for Google Maps/Google Earth and Google Maps/Google Earth APIs {{citation}}: |author= has generic name (help)
4. Google Maps
5. "Internet Archive Forums: Kakadu Error: PPM image file must start with the magic string, "P6"!".
6. Shih-Wei Liao; Shih-Hao Hung; Chia-Heng Tu; Jen-Hao Chen (December 2007). "Scalable Lossless High Definition Image Coding on Multicore Platforms". Embedded and Ubiquitous Computing: International Conference, EUC 2007, Taipei, Taiwan, December 17–20, 2007: Proceedings. Lecture Notes in Computer Science. 4808. Springer: 746–747. doi:10.1007/978-3-540-77092-3_64. ISBN 978-3-540-77091-6. ISSN 0302-9743.
7. MSU JPEG 2000 Image Codecs Comparison

Further reading

• "JPEG2000: image compression fundamentals, standards, and practice", Volume 1 By David S. Taubman, Michael W. Marcellin. ISBN 0-7923-7519-X
• Johan van der Knijff (2011). "JPEG 2000 for Long-term Preservation: JP2 as a Preservation Format". D-Lib Magazine. 17 (5/6). doi:10.1045/may2011-vanderknijff.

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