基于轮廓投影的车牌字符分割算法的设计与实现
毕业论文关键词： 车牌识别；轮廓投影；字符分割；
Design and implementation of segmentation algorithm based on the license plate character profile projector
Abstract: License plate recognition is one of the intelligent transportation system is an important part of the now widely used. License Plate Recognition generally consists of image acquisition, image graying, plate location, character segmentation, character recognition of five parts. In the image of the license plate recognition character segmentation is very important, license plate character segmentation is good or bad will directly affect the correctness of license plate recognition. Thus, by reading a lot of literature on this article on the character segmentation in-depth study. This paper outlines the use of projection-based license plate character segmentation algorithm. First, the license plate image preprocessing, good preprocessing algorithm can effectively improve processing efficiency. Since the original image noise and other factors, the image gray, gray normalized, then canny edge detection, image processing after a good contour projection and character segmentation. The experimental results showed that: this method is fast, simple, good segmentation quality, high efficiency, ease of character recognition next.
Keywords: License Plate Recognition ; Profile projectors; Character segmentation；
目录
摘要 i
Abstract i
目录 ii
1 绪论 1
1.1 课题研究的目的和意义 1
1.2 车牌识别系统 2
1.2.1 车牌识别系统的发展 2
1.2.2 我国车牌特征 2
1.2.3 车牌识别系统的应用 3
1.3 车牌字符分割的常用方法 3
1.4 车牌字符分割技术的发展趋势 5
1.5 本文的结构安排和内容 5
2 MATLAB简介 7
2.1 MATLAB概述 7
2.2 数字图像处理技术 8
2.3 MATLAB优势特点 10
2.4 MATLAB应用方面 11
3 图像处理理论基础 13
3.1 图像灰度化 13
3.2 灰度图像归一化 14
3.3 图像滤波 15
3.4 图像边缘检测 16
3.4.1 梯度算子 16
3.4.2 拉普拉斯(Laplacian)算子 17
3.4.3 Canny算子 17
下一篇：C#银行金融管理信息系统设计