摘要

众所周知：每个人的指纹是唯一的并且终生不变的。依靠这种唯一性和稳定性，我们就可以把一个人同他的指纹对应起来，通过比较他的指纹和预先保存的指纹进行比较，就可以验证他的真实身份。这就是指纹识别技术。作为生物特征识别的一种，由于它具有其它特征识别所不可比拟的优点，使得自动指纹识别被广泛地应用于各种安全系统中：简单保险柜/箱系统；较复杂的门禁系统；指纹与智能卡结合应用；基于指纹识别系统的网络安全等。

本文详细介绍指纹IC卡考生身份认证系统，该系统应用了指纹识别技术、IC卡技术。包括进行考生的指纹采集、考试卡的发放、考生身份的认证等功能。本文详细介绍了系统的详细分析以及实现过程。

关键字：指纹，考试，IC卡

Abstract

It is well known that fingerprints of an individual are unique and are normally unchanged during the whole life.Depends on this kind of unique and stability,we can get up a person together with his fingerprint, and can verify his identity by comparing his fingerprint with the fingerprint keeped in advance.This is the fingerprint-identify technique.As one of living characteristic identifies ,it has been applied in many kinds of safe system:Simple Lockfast System;Complicated Controlled Gate System;Fingerprint and Intelligence Card combination application;Network Safety depending on the fingerprint identifies etc.
In this text, detailed introducts a Examinee’s System depending on the fingerprint identifies and Ic technique.The examinee’s System is built with some principal function:fingerprints collector、the examination card issues、examinee’s fingerprint verifier etc.In this text,the process of detailed analysis and realizes is introduced.


Keywords: fingerprint,examination,IC,

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Abstract

There is no doubt that image processing have been a focus in the study of computer graphics.The technology of image processing is developed greetly.And in a computer a image is pixel-based.We call them bitmap.The paper is focus on the processing of bitmap images.Then we take two images for example,showing how to apply images.
In the first part I give an overall description of Visual C++.Because the project about the processing of bitmap images is realized by Visual C++.
In the second part the definition of bitmap image is introduced.We also discuss types of other image files.
The third part starts with DDB definitions .But it is mainly focuses on DIB.I created several functions on DIB.And we can call them from any part of the program later.
The fourth part is devoted to the processing of bitmap images, such as shifting images,rotating images.I use mathematical functions for analysis of image processing. And the effect of applying images is shown by changing the transparency.The codes in VC++ environment are also in this part.


Key words: bitmap image, overlap, transparency, VC++

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