Exiftool [1] and trusty ImageMagick [2] will work.  With ImageMagick it is as easy as:

convert image.tiff image.xmp

Members of the Visual Resources Association (VRA) have been working on/with embedded metadata for a few years now.  There may be something more to glean from the working group's wiki [3].

Cordially,

Kevin


[1] http://www.sno.phy.queensu.ca/~phil/exiftool/
[2] http://www.imagemagick.org/script/index.php
[3] http://metadatadeluxe.pbworks.com/w/page/20792238/FrontPage
 

> -----Original Message-----
> From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of
> Edward M. Corrado
> Sent: Monday, July 18, 2011 9:18 AM
> To: [log in to unmask]
> Subject: [CODE4LIB] TIFF Metadata to XML?
> 
> Hello All,
> 
> Before I re-invent the wheel or try many different programs, does
> anyone have a suggestion on a good way to extract embedded Metadata
> added by cameras and (more importantly) photo-editing programs such as
> Photoshop from TIFF files and save it as as XML? I have > 60k photos
> that have metadata including keywords, descriptions, creator, and other
> fields embedded in them and I need to extract the metadata so I can
> load them into our digital archive.
> 
> Right now, after looking at a few tools and having done a number of
> Google searches and haven't found anything that seems to do what I want.
> As of now I am leaning towards extracting the metadata using
> exiv2 and creating a script (shell, perl, whatever) to put the fields I
> need into a pseudo-Dublin Core XML format. I say pseudo because I have
> a few fields that are not Dublin Core. I am assuming there is a better
> way. (Although part of me thinks it might be easier to do that then
> exporting to XML and using XSLT to transform the file since I might
> need to do a lot of cleanup of the data regardless.)
> 
> Anyway, before I go any further, does anyone have any
> thoughts/ideas/suggestions?
> 
> Edward