虽然系统有给出划圆的直接的函数，但是没有让读者了解具体的计算机系统内部的绘制过程，本程序以顺圆为例，以逐点逼近法画出了并且是可以从任意点开始的顺圆的程序...

一个动画程序，实现一个风车转动，风车的风页颜色各异-an animation procedures, a rotating windmill, the windmill style pages with different colors

利用直接写屏函数，动态模拟一个小车在屏幕上来回走动。-The use of direct write-screen function, dynamic simulation of a car moving around on the screen.

这是一个Midline图形的程序代码-Midline graphics code

该程序用来求取256x256灰度图像的直方图，还可以对图形进行灰度值8级化-The procedure used to strike a 256x256 gray image histogram can also be carried out on the graphics gray value of 8

产生水纹、火焰及熔岩效果示例,本程序可以在图像上生成特效效果，值的一下。-Generated水纹, flame and lava sample effect, the program can generate effects in the image effect, the value of the click.

北京大学遥感所的研究生图像处理讲义高级遥感数字图像处理（硕士生课程）之第十七章 图像压缩-Peking University

三维绿翡翠龙，这是一个关于绿翡翠龙的虚拟现实三维空间作品，VRML语言编写，值得学习与观赏-Three-dimensional Green Jade Dragon, which is a green jade dragon on virtual reality three-dimensional works, VRML language, it is worth learning and Watch

一个很有用的Markov Decision Process matlab程序-a very useful Markov Decision Process procedures Matlab

一个绘图系统，可以绘制简单的基本的图形，也可以显示Bezier等基本的曲面，是用VC＋＋的MFC编写的-a mapping system that can draw simple basic graphics, can also show that the basic Bezier curves, and is using VC++ MFC prepared

A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database. -A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas base