Mobile Vision API (TEXT) not detecting single numbers?

Question

I use the Mobile Vision API ( https://developers.google.com/vision/ ) on Android to detect text in images.

However, it does not seem to be able to detect singular numbers such as “3” or “6”, but it can easily detect “23” or “56”, as well as coordinates involving singular numbers such as “d4”.

So my question is, can the Mobile Vision API not detect single numbers?

Answer 1

The answer to your question is yes. Mobile Vision cannot detect isolated single-digit numbers. In fact, I tried several other SDKs, including a commercial one, and still have not found a single one that can detect isolated single digits. The reason is that they are considered nothing, so they should be ignored.

If you have an SDK that does not have this problem, I am interested to know.