After image enhancement we try to o

After image enhancement we try to obtain all candidate regions that may be a license plate. Obviously using vertical edge
detection also extracts many useless long background curves and noisy edges. So, in this paper we employ an algorithm to
smooth and filter non-plate regions from the enhanced image before using the vertical edge detector. The method used is region-
based [16]. As the region-based the run time is quite significant), we modify this approach in algorithm was originally
applied in color images (where as order to use with gray scale images. The applied region-based method is explained as
follows.