License plate Angle correction is an important step of car license plate recognition .This article uses the Hough Transform method to detect the angle of the car license plate .In order to extract the frame information from the edge of the plate ,we should pretreat the car license plate images at the beginning ,then use the Hough transform to transform the extracting information of edge to get the line of the car license plate and its frame fitting line Angle . At the same time , we can introduce credibility to measure the pros and cons of test results .Finally we can get a pre-cise angle of t...
