I've been thinking about getting into computer imagery and sharpening my programming skills by solving some images-related problems. I don't have experience with programming images at all and I'd like to learn how they're designed, their terminology, common concepts and operations. I'm setting my goal to implement something similar to this https://htmlpreview.github.io/?https://github.com/sakarika/kanjitomo-ocr/master/how%20it%20works/index.html
What do you think is a great way to start working with such concepts? is there like a roadmap to learn basic operations on images and then gradually learn and improve? please share resources if you have any.