Re: how to mark up a photo on the web

On Feb 20, 2009, at 4:58 PM, Richard Newman wrote:

> Mark's point about attaching the longitude and latitude to the URL  
> is quite important: a particular JPEG at some URL is an  
> instantiation of some image, the taking of which is an event that  
> occurred at some place and time (or perhaps a composition of several  
> images, or a thumbnail of an image, or...). That's a pretty broad  
> network of facts.

The work we did some years ago on photo annotation following the foaf  
workshop is probably still a good approach:

http://esw.w3.org/topic/SimplePhotoAnnotation

The lat/long should be attached to the photo with dcterms:spatial.

> Similarly, the time a photograph was taken, the time a particular  
> version of it was produced, and the time that a particular JPEG file  
> was created on a server can all be different -- the first is  
> probably what users will want to search on, but the last is what the  
> filesystem will give you.

We simply used dc:date for the date the photo was taken, but that  
might run afoul of using things like dcterms:created and  
dcterms:issued (because of sub-property relationships) if you're  
trying to encode those things.

.greg