Optical character recognition, usually abbreviated to OCR, is the mechanical or electronic conversion of scanned images of handwritten, typewritten or printed text into machine-encoded text. It is widely used as a form of data entry from some sort of original paper data source, whether documents, sales receipts, mail, or any number of printed records. It is a common method of digitizing printed texts so that they can be electronically searched, stored more compactly, displayed on-line, and used in machine processes such as machine translation, text-to-speech and text mining. OCR is a field of research in pattern recognition, artificial intelligence and computer vision.
Early versions needed to be programmed with images of each character, and worked on one font at a time. "Intelligent" systems with a high degree of recognition accuracy for most fonts are now common. Some systems are capable of reproducing formatted output that closely approximates the original scanned page including images, columns and other non-textual components.
Read more about Optical Character Recognition: History, Importance of OCR To The Blind, OCR Software, Current State of OCR Technology
Famous quotes containing the words optical, character and/or recognition:
“People who have realized that this is a dream imagine that it is easy to wake up, and are angry with those who continue sleeping, not considering that the whole world that environs them does not permit them to wake. Life proceeds as a series of optical illusions, artificial needs and imaginary sensations.”
—Alexander Herzen (1812–1870)
“Note too that a faithful study of the liberal arts humanizes character and permits it not to be cruel.”
—Ovid (Publius Ovidius Naso)
“Tragedy, as you know, is always a fait accompli, whereas terror always has to do with anticipation, with man’s recognition of his own negative potential—with his sense of what he is capable of.”
—Joseph Brodsky (b. 1940)