Removing extra pixels/lines from license plate

Question

I am using HOG feature detector based on SVM classification. I can successfully extract license plate, but the extracted number plate have some unnecessary pixels/lines apart fr

Answer 1

You want to remove all non-text objects in the image. To do that, I suggest sorting the blobs by area of their bounding box (maxy - miny)*(maxx - minx). Do some statistical analysis; you know you are looking for objects of a similar size. Once you identify the approximate size of a character, make a larger bounding box that estimates the whole text. Keep the small blobs inside it, so for your picture, the dash sign will be preserved.