气象传真图格式转换及压缩的实现  

The realization of meteorological facsimile chart format conversion and data compression

作　　者：刘繁明[1] 刘莎 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《应用科技》2010年第9期61-64,共4页Applied Science and Technology

摘　　要：气象传真机在航海作业中具有重要的作用,是航海安全的保障.图像压缩及格式转换对提高气象信息传输和储存效率具有重要影响.在介绍GIF图像文件结构的基础上,分析了当前几种LZW图像压缩算法的特性.针对气象传真机的具体应用,给出适合气象传真图压缩及格式转换的算法,并通过对压缩结果的比较,对该方法进行了验证.Meteorological facsimile receiver plays an important role in ensuring the safety of marine. Image compression and format conversion have deep influence on information transformation and storage efficiency. Based on introducing the construction of graphics interchange format （GIF） file, the features of the LZW image compression algorithm were analyzed To the application of meteorological facsimile receiver, the facsimile charts data compression and format conversion algorithm were given and verified by comparing the results of compression.

关 键 词：气象传真图 格式转换 压缩算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]