Blob Detection Technique Using Image Processing for Identification of Machine Printed Characters

Optical character recognition systems have been effectively developed for the recognition of printed characters. Optical character recognition is an awesome computer vision technique with various applications ranging from saving real time scripts digitally and deriving context based intelligence using natural language processing from the texts. One such application is the recognition of machine printed characters. This paper illustrates the technique to identify machine printed characters using Blob detection method and Image processing. In many cases of such machine printed characters there is similarity between character colour and background colour. There is mix up of reflected light and scattered light. Colour is not consistent across character area or background area. Paper explains how Blob detection technique is used for recognition of these machines printed characters.