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快速ＤＣＴ变换的代码.利用c++实现DCT变换.(Fast DCT transform code. Use c++ to achieve DCT transform.)

对比两个图片归一化直方图对比相似度,用巴氏距离计算(Contrast similarity)

图形学中的透视投影算法 在屏幕中心绘制立方体的透视投影 可以绘制一点透视图 二点透视图 三点透视图(Graphics in the perspective projection algorithm for drawing a cube in the center of the screen you can draw a little perspective projection perspective two point perspective three-point perspective)

jpeglib的库文件，方便实现很多关于jpeg的操作，例如格式转换等等。(jpeglib the library file to facilitate the achievement of the operation of a number of jpeg, for example, format conversion and so on.)

这款小DEMO是关于自己学习LOD地形分层算法的例子，其中简单显示了实现算法的过程(The DEMO is a small study on their own examples of LOD terrain hierarchical algorithm, which simply shows the process of algorithm)

请将本压缩文件包下的所有文件放在AutoCAD的支 持目录之下，如 AutoCAD 的安装目录下；或者在下拉 菜单中的 工具-> 选项 －> 文件 -> 支持文件搜索路 径 -> 添加 本程序所在目录。调入应用程序jgj.vlx ， 可以直接将本程序拖入AutoCAD绘图区域，或者在下拉 菜单的 工具－>加载应用程序 中找到本程序后加载即 可! 成功加载后，在命令行内输入bzjgj即可运行。在 对话框中,可以选择螺栓螺母的类型以及其它平、弹垫、 螺纹的显示等，具体使用方法可参见本文件夹中的图片。 体验版只能绘制规格为M10之组件,如果您要注册本工 具,可在命令行内输入 zc ,即可获得相关注册信息。(Please support all the compressed files in AutoCAD package under the Held under the directory, such as AutoCAD installation directory or pull-down Menu Tools-> Options-> File-> Support file search path Path-> add the program directory. Transferred to the application jgj.vlx, This program can be directly dragged into the AutoCAD drawing area, or in the drop-down Menu Tools-> Load application found that after loading the program Can! After successfully loaded in the command line, type bzjgj to run. In Dialog box, you can select the type of bolts and nuts and other flat, spring washers, Threaded display, specific methods can be found in the folder of pictures. Trial version can only draw specifications for the components of the M10, if you want to register the workers Tools, you can enter in the command line zc, you can get the relevant registration information.)

基于K均值算法和互信息熵差的算法，可以有效地确定分类数,从而该算法对医学图像进行自动优化分割。(K means algorithm based on entropy and mutual information algorithms, can effectively determine the classification number, so that the algorithm for automatic optimization of medical image segmentation.)

鱼眼图像校正并将校正后的图像转换成鸟瞰图，即俯视图，纯C代码，没有调用其它库(fish eye image correction,then change it to bird s eye view)

检测空间中直线是否相交（动态）(detect whether linear space intersect (dynamic))

介绍四叉树基于视点LOD算法简化地形的图形编程资料，很有实用性，还带有其它效果的算法(Introduced Quadtree LOD algorithm based on the simplified view of the graphical programming information terrain is very practical, but also with other effects of the algorithm)