Not a complete match but, perhaps, commercially available Expression Media
(former iView). Supposedly, the best in DAM. Has scripting for what is
missing out of the box. Also, see this:
http://www.thedambook.com/smf/index.php
A good place to ask for alternatives...
There is also research-oriented image-annotation (open-source) alternatives
around but I am yet to try any.
S.
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