Hi,
I thought it was a Javascript implementation of the Silverlight DeepZoom
code, but I'm not sure either.

The IIPImage server supports various protocols and clients. From a jpeg2000
or pyramidal tiff it can stream tiles conforming to DeepZoom, Internet
Image Protocol (IIP) and Zoomify protocols. This allows it to work with
lots of clients including IIPMooviewer, OpenSeaDragon/SeadragonAjax,
Zoomify, OpenZoom, OpenLayers, PanoJS, JIIPImage (and maybe Silverlight,
I'm not sure). There are demos on the IIPImage site [1] and some more on
the Old Maps Online site [2].

Coming at it from the client-side, the IIPMooviewer 2.0 beta can display
tiles from any of the IIPImage Server protocols, but it can also load
pre-generated DeepZoom/OpenSeadragon/DZI or Zoomify tiles without the need
for an image server.

Eoghan

[1] http://iipimage.sourceforge.net/demo/
[2] http://help.oldmapsonline.org/jpeg2000/

On 31 January 2012 17:37, Ed Summers <[log in to unmask]> wrote:

> Yes, it's my understanding that OpenSeaDragon is basically a
> JavaScript implementation of the OpenZoom flash code...and that they
> work on roughly the same DZI files. But my knowledge of OpenZoom is
> very limited, so take that with a grain of salt.
>
> //Ed
>
> On Tue, Jan 31, 2012 at 12:07 PM, Raymond Yee <[log in to unmask]>
> wrote:
> > Thanks, Ed, for pointing out OpenSeaDragon -- I didn't know about it.
> > I've been aware of another similar open source project:
> >
> > http://www.openzoom.org/
> >
> > that makes use of Flash -- though the openzoom github repo has
> > openzoom.js (https://github.com/openzoom/openzoom.js).  I've used the
> > Python toolkit of openzoom (https://github.com/openzoom/deepzoom.py) to
> > generate tiles.
> >
> > -Raymond
> >
> > On 1/31/12 8:59 AM, Ed Summers wrote:
> >> If by digital objects you mean images we've been getting a lot of
> >> mileage out of OpenSeaDragon [1] at the Library of Congress. You do
> >> have to pre-generate the deep-zoom-files DZI [2] or you can implement
> >> your own server side tiling code to do it on the fly.
> >>
> >> As a space vs time trade off we generate tiles on the fly in
> >> Chronicling America [3], since there are millions of newspaper page
> >> images. But in the World Digital Library [4] we generate DZI files.
> >> Chris Thatcher, one of the developers at LC has a fork of the codeplex
> >> repo on GitHub [5], which we are applying some fixes to, since GitHub
> >> is alot easier to navigate and use than Codeplex.
> >>
> >> If you are curious here are some samples of the viewer in action:
> >>
> >>
> http://chroniclingamerica.loc.gov/lccn/sn85066387/1912-01-31/ed-1/seq-1/
> >>     http://www.wdl.org/en/item/4106/zoom/#group=1&page=4
> >>
> >> //Ed
> >>
> >> [1] http://openseadragon.codeplex.com/
> >> [2] https://github.com/openzoom/deepzoom.py
> >> [3] http://chroniclingamerica.loc.gov
> >> [4] http://wdl.org
> >> [5] https://github.com/thatcher/openseadragon
> >
>