Hi Jonathan,
We’ve been using OpenSeadragon recently.  We’ve implemented this in Spotlight as well as have been using it in redesign of SearchWorks.

You can get more info on OSD at http://openseadragon.github.io/ and the ruby-gem that we’ve been using at https://github.com/IIIF/openseadragon-rails

I believe this will work not only w/ large images, but specified tiles, as well as a IIIF support out-of-the-box.

- Jessie

On Jul 25, 2014, at 8:36 AM, Jonathan Rochkind <[log in to unmask]> wrote:

> Does anyone have a good solution to recommend for display of very large images on the web?  I'm thinking of something that supports pan and scan, as well as loading only certain tiles for the current view to avoid loading an entire giant image.
> 
> A URL to more info to learn about things would be another way of answering this question, especially if it involves special server-side software.  I'm not sure where to begin. Googling around I can't find any clearly good solutions.
> 
> Has anyone done this before and been happy with a solution?
> 
> Thanks for any info!
> 
> Jonathan