摘要
车牌图像由于受到采集镜头与车牌之间的距离,道路坡度,汽车驾驶速度以及司机所挂车牌位置的影响等,总有一定的倾斜度。这就为后期车牌图像的进一步处理带来了一定的困难,因此在后续的处理之间必须要对其进行倾斜校正。本文利用霍夫算法提取出车牌边缘的夹角,再将车牌旋转,最终实现了车牌的倾斜校正。
License plate images due to acquisition-and the distance between the plates, road gradient, vehicle speed and drivers license plates linked to the impact of the location of the impact of a certain in- clination. This license plate for the latter part of the image further treatment has brought some difficulties, so in the follow-up must be dealt with between its tilt correction. In this paper, Using the algo- rithm of Hough Transform to get the inclined angle from the edge of the angle, and then rotating license plates, and achieve the tilt the plate image correction.
出处
《仪器仪表用户》
2008年第6期81-82,共2页
Instrumentation
关键词
车牌
倾斜校正
霍夫算法
vehicle license plate
tilt correction
algorithm of Hough transform
