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  • Bijective BWT (7 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 (116 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 (3 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    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them.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

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

  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

The Internet’s Largest Image Online - 86400 x 43200 pixels!

Posted by Sachin Garg on 11th March 2006 | Permanent Link

IIPimage is a client-server system for the remote viewing of ultra-high resolution images over the internet using multi-resolution tiled TIFF images. We last mentioned it back in November 2005, they have had a few more updates since then.

Their demo of NASA’s incredible ultra high resolution Marble Earth image at 86400 x 43200 pixels is probably the biggest single image ever made available online!

(via digg)

4 Responses to “The Internet’s Largest Image Online - 86400 x 43200 pixels!”

  1. kwatson Says:
    December 5th, 2006 at 9:20 pm

    Actually, it’s probably only about the 10,000th largest image online. There are thousands of considerably larger ones from dozens of companies.

  2. Sachin Garg Says:
    December 5th, 2006 at 9:34 pm

    Yes, that story was more a result of hype and coolness factor, rather than truly being about the largest image.

    I noticed a couple of interesting images at the link you provided. What formats/systems are you using to store and allow viewing of these images?

  3. kwatson Says:
    December 5th, 2006 at 11:11 pm

    Currently, Zoomify (www.zoomify.com). They and we both worked on an IIP-based image server at MGI Software a few years back, and also use JPEG tiles. We’re soon transitioning to our own image server, since the medical industry has some specific needs; at that time, we’ll have a new large-image format. We’re also
    developing DICOM storage and communication standards for whole-slide images such as you saw.

  4. Sachin Garg Says:
    December 6th, 2006 at 3:58 am

    That sounds interesting.

    I think DICOM supports all major standards like JPEG, Jpeg-LS and Jpeg-2000, but medical industry hates lossy compression, so are jpeg and lossy jp2 will be out of picture, or are they still used?

    As far as I know, IIP uses tiles (pyramidal tiffs?). Can jpeg2000’s progressive features help in such zoomify type applications or are tiles an easier/better way to go?

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