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What implementations are available for the JPEG-LS compression standard? JPEG-LS is the new (relatively speaking) lossless JPEG format based on the HP LOCO-I (LOw COmplexity LOssless COmpression for Images) algorithm.

I am aware of the HP reference implementation which appears to no longer come with source code, and the following third-party implementations:

UBC, CharLS , Clunie

The CharLS library seems to be the most current and only one that is actively maintained. Are there any other implementations available that I have missed?

I am mainly interested in 16-bit grayscale compression and need a version that works (or can be adapted to work) on Win32. An implementation or wrapper compatible with Delphi would be ideal. CharLS seems to be quite good, but is C/C++ rather than pure C library and cannot be directly linked into a Delphi application due to its use of C++ features.

David Taylor
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As i remember teh JPEG-LS is part of the JPEG 2000 specs, so somethig count propobly be found searching for that.
Se also Free JPEG2000 Library or SDK for de-compression

Leadtools.com have a comercial library

Community
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BennyBechDk
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    Thanks for your suggestions. JPEG-LS is actually a separate standard from JPEG 2000. JPEG-LS uses the LOCO-I algorithm (developed by HP) in place of wavelets and has better compression/speed characteristics (see http://www.jpeg.org/jpeg/jpegls.html). LeadTools was a good suggestion, but they do not seem to support JPEG-LS for some reason. – David Taylor Feb 11 '10 at 16:12