I’ve been getting the faces in my photos recognised, but have had an issue with lots of portrait photos not being displayed vertically. So, a load of faces were displayed sideways. Worse, if I rotated these photos at a later time, the pictures would need re-indexing.
If you could figure out that the faces were not upright, could you rotate them until they were, then display that rotated face image? That would solve a lot of visual and reindexing issues, if it was possible.