摘要： 根据彩色车牌的颜色特征和车牌的灰度图的几何特征，提出了一种将车牌灰度图颜色统一转换成黑底白字(或者白底黑字)的新方法。

关键词: 几何特征, 颜色特征, 字符识别

Abstract: This paper proposes a new method to convert all kinds of vehicle license plate to white background and black characters (or black background and white character) based on the color character and geometry character of vehicle license plate.

中图分类号: 

• TP391.41