An improved license plate correction and localization algorithm based on RGB Hough

License plate secondary location based on image processing

“…Methods based on mathematical morphology often need to convert color image into binary image, and then the license plate region in the image is extracted through expansion, corrosion and combination operations. The disadvantage of this method is that it cannot accurately locate its boundary position, and often needs to be combined with other methods to accurately locate 6 . The method based on image edge information is to extract the required license plate area of the image through the edge detection operator.…”