What is OCR text recognition? How to identify?

OCR text recognition (Optical Character Recognition) refers to the process of using electronic equipment (such as scanners or digital cameras) to check characters printed on paper, and then using character recognition methods to translate the shapes into computer text, that is, to perform text processing on text data. The process of scanning and then analyzing and processing push files to obtain text and layout information. To put it simply, it is to recognize and extract the text on the text data. Now with the development of mobile phones, there are many such OCR text recognition tools.

For example, QQ on mobile phones, as well as Quick Text Recognition, etc., all have this text recognition function. As shown in the figure below, you can open this tool to perform text recognition on pictures.