Thanks for all of the replies. Yes, hosted JPEG2000 seems the way to go. I can't even open a 300MB TIFF on an iPad. We use ContentDM to upload JPEG2000 images right now so serving them would not be an issue. My basic idea was that in a tablet form with high resolution images you could pinch and zoom the experience of "holding" a manuscript would actually be more intimate and closer to the intended viewing experience of the original creator. That said pixelation is the enemy. Additionally being able to mark up a digital manuscript and make a copy for future reference would be valuable.
My original idea was a small class in Special Collections that would be given matching iPads vs a group that had either access to the original or high quality reproductions and seeing which group got more out of it. Putting the images on a server fixes many issues but creates new ones. Thanks so much for all your help. Edward Iglesias On Fri, May 11, 2012 at 5:14 AM, Andrew Hankinson <andrew.hankin...@gmail.com> wrote: > Hi Edward, > > A bit of disclosure: I'm one of the developers for Diva. > > We have done quite a bit of experimentation for viewing images on various > platforms, and even on a Mac Pro with 8GB of RAM and an SSD, 300MB TIFF > images still require a bit of waiting for any viewing or operations. > > As Dave mentioned, we're developing the Diva viewer to do online viewing. It > requires a bit of server setup, but the big advantage is that I find it's > actually faster to view large images online in the browser than it is to view > them off a hard drive. > > These images: > > http://coltrane.music.mcgill.ca/salzinnes/experiments/diva-cci-tif/ > > are approximately 170MB for each page (about 80GB for the whole document), > but since we only ever serve out the parts of the document that you are > looking at, it makes viewing large medieval manuscripts very easy and fast, > without sacrificing the ability to zoom in to see very fine details. > > We did a bit of testing on the iPad early on, but haven't tested it since we > did another round of development. > > If you're interested, let me know and I can help you get it set up. > > Cheers, > -Andrew > > > On 2012-05-10, at 5:16 PM, Edward Iglesias wrote: > >> Hello All, >> >> I was wondering if any of you had experience viewing large ~300MB and >> up TIFF files on an iPad. I can get them to the iPad but the photo >> viewer is less than optimal. It stops enlarging after a while and I'm >> looking at Medieval manuscripts so... >> >> >> Edward Iglesias
