Optical Character recognition or OCR is the technology of translating printed or handwritten types of data into digital, machine-readable form to be used for Data Processing.
How does it work?
We can use OCR to digitize files such as invoices, contracts, receipts, etc and there are 2 ways for OCR to recognize the characters.
The texts we use today come in various fonts like Arial or Times, which make it difficult for OCR to recognize and scan the letter. That’s why we have to show OCR programs examples of texts in different fonts and formats so they can recognize the patterns by themselves later on.
Feature detection, a.k.a feature extraction or intelligent character recognition (ICR), is the technology where we set certain rules so OCR programs can identify the features of different characters. These features include the number of angled lines, crossed lines or curves in a character. For example, instead of identifying the whole letter “V”, feature detection will detect the components that make up the letter, and that would be two diagonal lines that meet at the bottom.
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