Hi Peter,

I know CLA's Digital Content Library <https://dcl.umn.edu> uses images
where:

   - Thumb  72 dpi, 150 pixels longest side, jpeg format
   - Screen  72 dpi, 500 longest side, jpeg format
   - Projection  72 dpi, 1280 longest side, jpeg format
   - Master  3200 longest side, 16 bit depth, Adobe 1998 color space, TIFF
   format

For each of the 220,000-ish images, these 4 file sizes exist.
You can read more about the logic behind these standards
here<https://dcl.umn.edu/static_content_items/standards>
.

Hope this helps,

-joe

-- 
Joe Goggins, Web Developer
Academic Support Resources
160 Williamson Hall
(612) 625-6116
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On Thu, May 20, 2010 at 10:43 AM, Peter Wiringa <[log in to unmask]> wrote:

> Hi,
>
> I'm interested if any groups have standardized on image sizes. If you have,
> would you let me know:
>
>  * what those sizes are
>  * how extensively they're used (a few pages? hundreds? thousands?)
>  * the reasoning for your choices
>
> We're looking at possible changes to the Images Library and would like to
> go with commonly used sizes if they're appropriate for our needs, rather
> than coming up with another set of sizes.
>
> I'll compile anything that comes through and share with the group.
>
> Thanks.
>
> -pete
>
>
>
>
> --
> Peter Wiringa
> Electronic Communications
> University Relations
> University of Minnesota
> (612) 625-3252
> [log in to unmask]
>
> "I gotta hold on to my angst. I preserve it because I need it. It keeps me
> sharp, on the edge, where I gotta be." - V. Hanna
>