Connected component analysis for Indian license plate infra-red and color image character segmentation

Abstract

Character segmentation is a necessary preprocessing step for character recognition in many license plate recognition systems. It is important because incorrectly segmented characters are less likely to be recognized correctly. In this article segmentation scheme of Indian LP has been proposed with some unconventional and easy-to implement technique — The connected component analysis. In this paper the first part is taken into consideration some preprocessing operations and the second part is for connected component analysis by means of labelling algorithm, aspect ratio analysis and pixel count analysis. By using the corresponding co-ordinates, characters are extracted from the license plate. Results for this method are promising even in tough conditions.