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Note: This is the old Pandora home page and is no longer being updated.
The current home page is here.
This demonstration shows the use of JPEG 2000 Part 2 (JPX) files
to store web pages as a novel example of metadata.
Here you can see:
- A presentation given
in Paris
about Pandora. The presentation
is itself a multi-page Pandora file containing both text and image data.
It is also
available as a binary file or in its earlier
PowerPoint form (as given
to DIG@U
in Florence).
- An example of variable-rate
decoding using a Pandora file that contains a single XML
document and a single JPEG 2000 image.
The decoding rate is passed by the XML parser from
the page URL through to the image URL. (To see this, compare the page source at
different decoding rates. Note that although the final images are
transcoded to JPEG for display in current browsers, the variable-rate JPEG 2000
decoding is genuine and on-the-fly.)
This example is also
available as a binary file.
- The first contribution made to the JPEG
committee about Pandora,
wg1n1903.jpx (also available as a
binary file), which provides a
brief although outdated overview of the architecture underlying Pandora.
- The original prototype examples,
balloon.jpx and
bottles.jpx. Are they the first ever
JPX files?
- A raw directory listing from the Apache web server,
to show that these really are just single files. You can download a file
in binary, typically by clicking with the right-hand mouse button on its .jpxbin link: these are simply
Unix symbolic links pointing at the .jpx files, but the web server has been
configured so that only the latter are
rendered server-side by the JPX and XML handlers. (Eventually,
browsers should have the ability to do this client-side.)
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