Tips on performing OCR - not getting desired results

Question

So I have the following image:

I'm trying to extract three arrays:

var a = [30,31,32,35,37,40,44];
var b = [6,7,11,15,18,21,22];
var c = [5,11,15,18,23,37,28];

I tried feeding this image into tesseract ~/Desktop/test.png out to no avail:

9 % ooenesew @
5 ‘ 904399

And here is the result from ocrad ~/Desktop/test.ppm:

o
?
28

Can any OCR experts suggest what I might try next? I'm comfortable using Python/OpenCV, but will try anything.

Answer 1

If your images always look like in the example, you might have to do some tidy up to remove anything that is not a number (all the black background and the circle). Then the method described in the accepted answer on the linked question might be sufficient for your needs, since it looks like you are not dealing with different fonts and sizes: Simple Digit Recognition OCR in OpenCV-Python