3. How does OCR software work?
The program analyzes the image structure of the document and divides the page into elements (such as blocks of text, tables, and images).
Lines are divided into words and words into characters. Once all the characters are distinguished, the software compares them with a set of sample images and creates several hypotheses about which letter they might be.
Based on these hypotheses, it then analyzes the different ways lines can be divided into words and words into characters. After processing a large number of such probabilities, the OCR program is finally able to make a decision and display the recognized text.