iOs recognizing letters, neural network, ocr, etc

I want to recognize uppercase letters using objective-c.

I have an implementation now that uses tesseract OCR but it's just not accurate enough. The sample size is incredibly small. Only letters A-Z all the same font and all uppercase so there has to be an easier solution.

I'm going to send this to you guys becuase I'm definetly a beginner开发者_StackOverflow at iOS. Does anyone know of a way that I can solve this conundrum

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Tesseract is probably your best shot. The default OCR isn't great, but you can train it to work better. We did a project (skip to 3:25) where we trained Tesseract to read credit card numbers from iPhone images of credit cards.