[SOLVED] Google Play Vision: Define OCR Character Range?

Google Play Vision: Define OCR Character Range?

I'm using Google's play-services-vision to perform Optical Character Recognition (OCR) using the TextRecognizer class on the Android platform.

In the interest of performance, I would like to limit the range of characters possible for recognition to the expected range of my application. I don't know how to go about informing the TextRecognizer of this.

Currently, I am using a very basic implementation:

TextRecognizer t = new TextRecognizer.Builder(getActivity()).build();

I'm hoping for functionality reminiscent of the following, where the TextRecognizer would only be capable of returning characters in the range of 01234abc:

t.setCharacterRange("01234abc");

If it is at all possible to define this whitelist, does anyone have any knowledge as to whether special characters can be configured for detection too?

Solution

There is currently no function to whitelist only the specific characters you want to be recognized by TextRecognizer. You'll have to implement your own checker/verifier on the TextBlock String value returned.

_{P.S. - Yup. I also think it's a lot of work.}