:mag: Pure Go implementation of fast image search and simple OCR, focused on reading info from screenshots
https://github.com/deluan/lookup.git
It is a nice, simple and fast library which helps you to lookup objects on a screen. It also includes OCR functionality. Using Lookup you can do OCR tricks like recognizing any information in your Robot application. Which can be useful for debugging or automating things.
This library is a straight port of the Java LookUp library to GoLang. Details on NCC (Normalized cross correlation) used by this library can be found in the original library's 'docs' folder (a lot of math).
Take a look at the examples files for Lookup and OCR for usage samples. For more details check the documentation.