github.com/deluan/lookup (go): Package lookup implements a nice, simple and fast library which helps you to lookup objects on a screen. It also includes OCR functionality. With Lookup you can do OCR tricks like recognizing any information in a screenshot from your Robot application. Which can be useful for debugging or automating things.  This library is a port of the Java Lookup library (https://gitlab.com/axet/lookup) 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).
Keywords: image-matching|image-recognition|ocr|screen-reader|screen-scraping