开始检索”调用DoBrowse--- 功能：用于管理ListBox(1)首先取出处理的起始目录路径

(2)调用SiapCariRecursive来对目录中各文件进行处理,这里面又分好几层关系。

（a）锁定一些暂时不用的按键，使在检索处理过程中，不让用户操作，乱按。

（b）调用CariRecursive函数：功能是分别提取目录中各个文件，并进行计算颜色直方图。这个函数又分下面几层：

(i)循环递归调用CariRecursive，找到所选目录下是否有子目录，有子目录进入子目录先处理

(ii)调用ScanFile，提取子目录中的一个个文件。

(iii)上面一步中，每找到一个文件，就调用Madhosi，进行计算颜色直方图（这部分与第1大点中，对关键图处理过程一样），并与关键图的颜色直方图比较，得到相似度，最后在把相似度保存到ListBox中去，同时对应填入对应的文件路径。

(iv)循环至(i)直到目录中所有文件都处理过，才结束CauRecursive,退出该函数。

(3)根据ListBox里面的内容，调整ListBox的宽度。按相似度距离，按从小到大把各文件排列在ListBox中。-Due to the development of multimedia technology and fast expanding of visual information, an effective method is sharply needed to manage and retrieve visual information. So, the Content Based Image and Video Retrieval technology comes into being and become an important research area in multimedia retrieval and image processing.

This thesis focuses on the application of Content based image retrieval (CBIR) technology in defense information technology area. The research on this topic is of great significance in theory and practice. The main work of this thesis lies on:

This thesis makes extensive and deep research in CBIR technology. The status quo and key technologies are introduced, the bottle-neck and development trend are also discussed. The thesis analyzes the application requirement for CBIR technology in defense IT area, and proposes a reasonable application model. The experimental results show that the method is reasonably better than existing methods.

Keywords: content-base