how to decide if extracted region is a character

im working on ALPR and i have extracted a licens plate than i do:

1. i remove some of small and big object
2. extract conected components
3. template matching for each extracted componet

it work quite good, but there is always somthing that is not a character. So i there any way to decide if extracted region is a character or not? or maybe i shoud do some more pre procesing the image?

Answer 1

[Image Analyst]

Try the OCR capability in the Computer Vision System Toolbox http://www.mathworks.com/help/vision/ref/ocr.html#bt548t1-2_1