VC++指纹识别系统的设计与实现
本设计主要通过在PC机上基于Visual C++的指纹图像处理算法来实现对指纹图像的预处理，即指纹图像畸变矫正，分割，场能计算，灰度均衡，收敛，平滑，智能增强，二值化，去噪声，细化及指纹特征的提取，从而完成对指纹图像匹配与识别来辨认个人身份。
毕业论文关键词：指纹识别系统；指纹图像预处理；匹配
The Design and Implementation of Fingerprint Identification System
Abstract: Due to the particularity,uniqueness and reliability of fingerprints,the automated identification based on fingerprints has become a secure and effective method of identification.Even though people have developed Pattern Recognition System based on iris,face,voice and so on,the Fingerprint Identification System is still the most extensively and universally used identification system.Because there are different types of fingerprint texture,and the influence of some factors,such as grayscale ,noise and so on that exist in the fingerprint images that have been input,an ideal fingerprint identification system remains a subject to research and develop.Therefore,the development of fast and effective fingerprint image processing algorithm is the significant way to achieve the fingerprint pattern recognition.
This paper achieves the preprocessing of fingerprint image through fingerprint image processing algorithm based on Visual C++ in PC,which includes fingerprint image distortion rectifying, segmentation, orientation, grayscale equalization, convergence, smooth, intelligence enhancement, binaryzation, noise, and fingerprint feature extraction refinement, thus identifing the character through the match and identification of fingerprint image.
Keywords: Fingerprint Identification System;The Preprocessing of Fingerprint Image; Match
目 录
第1章 绪论 1
1.1开发背景 1
1.2指纹识别技术的历史、现状和未来 1
1.3本设计的主要研究内容 2
第2章 指纹识别系统算法概论 3
2.1 指纹模式和指纹模式识别 3
2.1.1指纹模式 3
2.1.2指纹模式识别 3
2.1.3指纹模式对象的信息文度比较 3
2.1.4指纹模式和指纹模式识别的历程 4
2.2 指纹识别系统算法的组成 4
2.2.1系统的离线识别算法 5
2.2.2系统的在线识别算法 5
2.3 指纹识别系统算法 5
2.3.1图像采集 5
2.3.2图像预处理 5
2.3.3特征提取 5
2.3.4识别匹配 5
第三章 指纹模式识别的预处理 6
3.1指纹图像场及其计算 6
3.1.1指纹图像方向场的函数源代码 6
3.1.2指纹图像方向场的函数实现 6
3.2指纹图像的分割 8
3.2.1 指纹图像的分割函数源代码 8
3.2.2 指纹图像分割函数的实现 8
3.3指纹图像的灰度均衡 10
3.3.1 指纹图像灰度均衡函数源代码 10