The Data Compression News Blog

All about the most recent compression techniques, algorithms, patents, products, tools and events.


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Recent Posts

  • Google Snaps Up On2 (12 Comments)

  • Bijective BWT (37 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (172 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (9 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring (11 Comments)

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

MS WMPhoto Renamed HDPhoto, Officially Released

Posted by Sachin Garg on 21st November 2006 | Permanent Link

Microsoft has re-christened their competitor to JPEG and JPEG2000, Windows Media Photo as HD Photo. The licensing terms have also been revised.

We have also made a substantial change to the licensing. The previous Windows Media Photo Device Porting Kit (DPK) evaluation and distribution license agreements are gone. We have replaced them with a straight-forward click-to-install End User License Agreement (EULA) for the new HD Photo 1.0 Device Porting Kit. It’s now easy for anyone to receive the complete HD Photo DPK, including the compressed bitstream specification and the ANSI-C reference source code. The DPK is free, and we have eliminated all distribution royalties. HD Photo is 100% free for all developers.

The new HD Photo 1.0 Device Porting Kit (DPK) is available and contains complete C code.

Microsoft first announced the WMP (now HDP) format in May this year as a Jpeg Killer and claim that HD Photo delivers a lightweight, high performance algorithm with a small memory footprint that enables practical, in-device encoding and decoding. It delivers compression quality comparable with JPEG-2000 and more than twice the quality of JPEG.

But a report by Graphics and Media Lab at Moscow State University (MSU) concludes “WMP’s quality is quite average, and there are no signs of “revolution” in compression ratio” and that “some one-year old implementations of JPEG 2000 significantly outperform WMPhoto in objective and subjective comparison”.

And the original JPEG aren’t playing just ’spectators’ to all this, they are working on a revised improved JPEG extension.

Add to this the large number of proprietary offerings in market and it seems like this format war is just getting started.