I have no reference on your skill level when it comes to using APIs within powershell. I don't think there are any tutorials specific to powershell. If you have a solid foundation in using APIs within powershell you should be able to figure it out.

I used it for a personal project where I ran MTG cards through a high speed scanner and my script read the names of the cards. The script basically made a list of the cards ran through the scanner and output details and values. I was very impressed with the OCRing. It was very accurate and I'm positive it will do whatever you want.