I've tested how a Tropy item with rectangular selections on the image imports into Omeka.
The coordinates in Tropy don't seem to be quite correct - you can see I drew rectangles around the printed photographs but I got rectangles full of text instead. (And in the wrong orientation.) So, that'a bug.
But, I mean to say that the new Image Annotate module (https://omeka.org/s/modules/ImageAnnotate/) makes similar rectangular selections of a particular image, along with textual notes attached to each rectangle. So, instead of exporting separate image files, perhaps you could just send the coordinates to match the module's data format.
You can take a look at the manual to see how things work: https://omeka.org/s/docs/user-manual/modules/imageannotate/
Again, I'm not sure if we're accepting this information via API yet, but we probably could, if you thought this was worth offering.
I've tested how a Tropy item with rectangular selections on the image imports into Omeka.
The coordinates in Tropy don't seem to be quite correct - you can see I drew rectangles around the printed photographs but I got rectangles full of text instead. (And in the wrong orientation.) So, that'a bug.
But, I mean to say that the new Image Annotate module (https://omeka.org/s/modules/ImageAnnotate/) makes similar rectangular selections of a particular image, along with textual notes attached to each rectangle. So, instead of exporting separate image files, perhaps you could just send the coordinates to match the module's data format.
You can take a look at the manual to see how things work: https://omeka.org/s/docs/user-manual/modules/imageannotate/
Again, I'm not sure if we're accepting this information via API yet, but we probably could, if you thought this was worth offering.