摘要随着计算机技术的迅猛发展，将气象传真机接收系统与数字图像处理技术相结合是未来进行天气分析和预报的重要趋势。利用数字化的图像处理技术不仅可以克服上述缺点，更可以增加气象传真图在航海和气象领域运用的深度和广度。运用各种不同的方法对处理过的气象传真图，进行分析和计算，得出天气分析中所需要的数据和结果。63681

本文主要完成了以下几个方面的工作：结合气象传真图的自身特点提出了一种连通域标记与模板匹配相结合的方法来去除气象传真图中的噪声；针对气象传真图中不同的文字标注信息分别进行了去除处理；通过对半圆形的识别来提取气象传真图中的锋线；运用外推法简易分析天气图，作出短时间的预报；对处理过的气象传真图进行风速计算及相应的应用。

毕业论文关键词  气象传真图，数字图像，等值线，外推法，风速，位能 

Title    The Extraction and Analysis of Weather Facsimile   Chart                                                 

Abstract

With the rapid development of computer technology,a combination of meteorological facsimile receiver system with digital image processing technology will be a important trend in weather analysis and forecasting . Using digital image processing technology can not only overcome these shortcomings, but also can increase the depth and breadth of weather fax map in the use of navigational and meteorological fields. Using all kinds of different methods analyse the processed meteorological facsimile map and calculate, we can gain the data needed in weather analysis and results.

The following aspects are talked about in this paper: Combining with the characteristics of the meteorological facsimile maps,a method comnination of the connectent labeling and the tamplate matching is put forward to remove the noise figure in the meteorological facsimile maps; Different annotation information are removed differently based on their characteristics; The strikers have been extracted in the mereorological facsimile maps by identificating of triangulars and semi-circilars; Using the extrapolation method analyse weather facsimile map, make a forecast for a short period of time; Wind speed for the processed meteorological facsimile map is calculated and the corresponding application.

Keywords  Weather Facsimile map, digital images, contours, extrapolation method, wind velocity, potential energy

毕业设计说明书（论文）外文摘要 

1 绪论 1

1.1 研究背景及意义 1

1.2 研究现状 2

1.3 本文的主要内容和章节安排 3

2  气象传真图的解读和预处理 4

2.1气象传真图概况 4

2.2 图像的读取和存储 6

2.3气象图像的二值化处理 6

2.4气象传真图的去噪 8

2.5本章小结 12

3 气象传真图中关键信息的提取 13

3.1 气象传真图与底图的匹配 13

3.2 气象传真图的图文分离 14

3.3 气象传真图中锋线的提取 17

3.4 本章小结 20

4 气象传真图的分析和应用