How to OCR engraved text?

Question

I have this image

How to OCR it? I know this is very challenging, but I would

Answer 1

Try playing with the contrast and gamma on the image. All you need is a solid outline on the characters for most libraries. Depending on your performance SLA, you could run through various contrast/gamma scenarios and let the OCR software take a couple of shots at it. Take an aggregate of the results and see if there are any consistencies. This could give you a fairly accurate result long term.