A Review on Optical Character Recognition

Abstract

Nowadays, using a keyboard for entering  data is the most common way but sometime it  becomes more time consuming and need lots of  energy. So, a technique was invented named Optical  Character Recognition abbreviated as OCR that  transfigures printed as well as handwritten  text into  machine encoded text by electronic means. OCR has  been a topic for research for more than half a century.  It electronically and mechanically converts the  scanned images which can be handwritten,  typewritten or printed text. In general, to figure out  the characters of page, OCR compares each scanned  letter pixel by pixel to a known database of fonts and  decides onto the closest match.