基于HSI颜色模型的汽车牌照定位方法  

Vehicle license plate location method based on HSI color model

作　　者：梁友[1] 田沛[1] 

机构地区：[1]华北电力大学控制科学与工程学院,保定071003

出　　处：《仪器仪表用户》2008年第5期78-79,共2页Instrumentation

摘　　要：汽车牌照定位是公认的较难解决的图像分割问题。本文基于HSI颜色模型给出了汽车牌照定位的新方法:首先对图像进行倾斜校正处理,然后将图像转换到HSI颜色空间,对该模型的H分量和S分量进行过滤获得二值化的汽车牌照图像,再通过孔洞检测去除未含有孔洞的连通域,并填充孔洞,运用数学形态学方法对二值图像处理,最后根据车牌照特征定位出车牌照区域。试验证明该方法达到了很好的定位效果。Vehicle license plate location is the image segmentation question which is recognized difficult to solve. Based on HSI color model, this article gives a new method to locate vehicle license plate： first, process tilt correction on the Image. Then transform the image to HSI color model space and carried filter on H and S compo- nents by which obtains the binary image. Eliminate connected do- mains which are not contain holes and fill holes by the holes detec- tion and apply mathematics morphology method on the binary ima- ger. Last, according to the characteristics of the license plate the plate region is located. The method had been approved achieving a good effect by experiments.

关 键 词：HSI颜色模型 车牌照定位 数学形态学 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]