no, you can't simply zip your desktop environment, and put it on a raspi, the underlying hardware architecture differs.
you can build it from scratch on the actual device, but this will take ages. (and you'd need a quite large disc, ~2gb temp files produced during build)
you can try to cross-compile it on your desktop box, and later transfer it to your raspi
there are prebuilt cv2 packages for raspian, unfortunately they're stone-age, something like 2.4.8
