OCR Full Form in Computer | What is the Full Form of OCR
OCR Full Form - Optical Character Recognition
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Optical Character Recognition
- OCR stands for Optical Character Recognition.
- It's also called an optical character reader (OCR) or text recognition.
- It's designed to convert scanned paper documents, or images of documents captured by a camera into readable, editable and searchable data.
- The scanned page of a physical document is displayed on the screen and may be read, except for the computer, it's just a series of black and white dots, which it cannot recognize.
- To enable the PC to read a scanned document and produce a soft copy, OCR was developed.
- OCR examines the text of a scanned document and translates the characters into code that creates the text machine-readable in order that it are often transformed into an electronic format or soft copy just like a document created with a word processor which users can edit, format, search and read.
- Thus, it helps computer recognize words and characters on a scanned page or digital images of physical printed or handwritten documents by using the optical properties of words and characters printed on a scanned page or document.
- An OCR device is made from hardware and software combination, designed to convert physical documents into electronic text.
- Hardware of OCR (optical scanner or a circuit board) copies and reads the text, whereas the software deals with the advanced processing.
- The software also can make use of artificial intelligence to use advanced methods of intelligent character recognition (ICR), just like the ability to spot language or kind of handwriting.
How OCR works
- The scanner processes the physical form of the document.
- Once the document is scanned, the software analyses its structure and converts it into a colored (black and white) version.
- The scanned document is examined for light and dark areas.
- The dark areas are identified as characters, and light areas are identified as background.
- The dark areas are further analyzed to identify letters or numeric digits. The lines are divided into words and words into characters. OCR attempts to determine if the dark areas represent a particular letter or number.
- Once the characters are singled out and identified, they're converted into an ASCII code which is used by computer systems to handle further manipulations and thereby present you the recognized text.
- OCR software may vary in their techniques, but generally analyze one character, word or block of text at a time then identify characters using one among the following two algorithms.
- Pattern recognition : OCR software is developed by feeding the samples of text with different fonts and formats, in order that they understand the form or pattern of characters and accordingly identify them correctly.
- Feature detection : In this technique, the OCR programs believe the feature of a personality or variety. The features may include the number of angled lines, crossed lines, or curves during a character. For example, the letter 'A' may be stored as two lines connected to a horizontal line at the middle and also joined together at one end.
Optical Character Recognition Works