Is it? Binary is not a “analog” vs “digital” thing. “Binary” existed in analog computing for a couple of centuries at least before the concept of “digital“ even existed.
It’s an abstract concept, not a specific application and while it can be specifically applied, there is no implication that it is either analog or digital. It could be either, both, or neither.
I think there’s something quite disturbing about the fact that we have all had to become image analysis experts just because everything we see every day is so hard to believe