It needs recognize icons. For exmample, the app scans with with phone camera and recognizes one of the icons below and if it recognized then the app perfroms some action. It recognizes it by comparing with icons stored in the app.
Any libs, manuals, please.
And how to name this task if to search it: optical image recognition? (This is not OCR because recognizing image, not text, right?)
Thank you very much!