That medium sized dry objects in photographs and the matter of satellite imagery (for example) have little in common strikes me as self evident. The separation

That medium sized dry objects in photographs and the matter of satellite imagery (for example) have little in common strikes me as self evident. The separation of "lines", "colours", etc at the most abstract level is a trivial task. It is not a trivial task at a semantic level, where the network is supposed to be useful, and where the overlap in mutual information makes all the difference.