作者机构：
[管庶安; 刘光蓉] School of Mathematics and Computer Science, Wuhan Polytechnic University, Wuhan 430023, China;[周红] School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430023, China
通讯机构：
School of Mathematics and Computer Science, Wuhan Polytechnic University, China
摘要：
The paper proposed a fast method on discovering vehicle license plate position in image with very complicated background and bad shooting condition. Firstly, we deduced a new RGB threshold formula by limiting the hue change range. Secondly, we provided a fast method to detect license plate position according to the characteristics of colors of license plate. Finally, we performed a detection experiment with 416 images containing license plate and the result showed that almost all license plates could be discovered quickly with our method from the images with even quit complicated background.
