Get polygon data from mosaic tool

[Edvin76]

Hi,

So i found a question similar to this:
https://www.gimp-forum.net/Thread-define...ort-points

But it is not exactly what I want, because I just need the coordinates already created by the mosaic tool, I don't have them created by hand.

So I would like it somehow if the mosaic tool could output the coordinates of the resulting polygons' corner coordinates and rgb values belonging to them, is there a way to get such list out of gimp?

Thank you!