摘要： 分析了用Ｍａｔｌａｂ处理图象的优缺点，指出了其运算速度慢的根源。讨论了Ｍａｔｌａｂ调用Ｍｅｘ 文件的参数传递机制，在此基础之上提出了一种运用 Ｃ语言灵活调用 Ｍａｔｉａｂ自带的 ＡＰＩ函数来编制 Ｍｅｘ文件从而实现快速图象处理的方法，并说明了该方法的具体操作步骤，最后给出了一个典型的图象处理算法的运算速度的对比实验结果及结论。

关键词: Matlab, DLL, 图象处理

Abstract: In this paper, we first analyze the superority and limitation in imagessing by use of Matiab and point out the roots of slow computing speed, then discuss the mechanism how Matlab contactS with the MEX files, also put forward a fast image processing method by flexcible calling the MEX files Which are compliled wilh the Matlabs API functions. Consequently, we explain dstailed implement steps of this method. Finally, the experiment result of speed comparison and conclusion are given.

中图分类号: 

• TP391.4