基于VB的图像预处理.doc

哈尔滨工业大学工学硕士学位论文 哈尔滨理工大学学士学位论文 - PAGE II - -  PAGE II - 基于VB的图像预处理 摘要 VB全称为Visual Basic，它是Windows环境下最受欢迎的程序设计工具之一。利用计算机来进行图像处理，称为数字图像处理。数字图像处理是许多领域最具有挑战性的研究课题之一，利用VB进行数字图像处理比其它语言进行处理，具有简单易学、用法比较灵活、编程效率较高等特点。 本文介绍了VB程序设计的开发环境，数字图像处理的基本原理，同时也分析了VB设计语言的设计特点。设计了一套基于VB的数字图像处理的程序，该程序包括了界面设计和程序设计两方面：界面设计方面包括菜单栏、工具栏、图片栏以及其它控件设计部分；程序设计方面包括图像的读取、灰度化、直方图、二值化以及一些常用图像处理的算法程序。最后通过实例应用说明了VB源程序的调用方法以及实现的数字图像处理效果。本设计在界面设计上较为简单，软件程序易于接受，同时在进行设计过程中可以灵活多变，可以改变部分程序实现其他的图像处理功能。此项设计满足大众的基本图像处理要求，同时为那些对图像需要进行特殊处理的专业要求提供了方便的渠道。 关键词　VB；灰度化；直方图；二值化 Image Pre-processing based on VB Abstract The full name of VB is Visual Basic, which is one of the most popular programming tools under the Window environment. Digital manage processing refers to the processing of images by using the computer. This technique is one of the most challenging researches in many technical area. It would be much easier, more flexible, and efficient to process images by using VB, than any other language. This paper introduced the environment of development of VB, and the basic principle of digital image processing. Meanwhile, it also analysis the design features of VB. It also designs a program based on VB digital image processing, including interface design and programming: The inter faces contains the menu bar, tool bar, image field, as well as other design of the control part. The design of the program includes reading images, gray, the histogram, binary as well as some algorithms programs of common image processing. At last, through the examples, it describes the methods of calling the VB source code, and the results achieved by digital image processing. This program is relatively simple on the interface design, and meanwhile can be flexible during the design progress, and also can change other procedure to fulfill other image processing function. This design can be used to meet publics’ basic requirement of image processing. It also provides convenient channel for those who need the special treatment to images.