The next step in assigning Keywords to a photo, is to be able to link a keyword to a sepcific region of the photo.
This would be useful in may situations.
ex: face tagging require that, but it could be used to describe different par of a photo, like peaks in a land scape photo, birds,...
That would be a really useful feature.
Some software already have it.
Regards
Note: This topic was created from a reply on the Lightroom: add option to graphically mark images topic.