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[Documents] Gaborfilter DL : 0: 本文介绍了Gabor滤波器设计，非常适合指纹图像的滤波和增强。-In this paper, Gabor filter design, very suitable for fingerprint image filtering and enhancement.
Update : 2025-02-19 Size : 655kb Publisher : 李晨
[Special Effects] gaborfilter.tar DL : 0: Gabor滤波器经常被用于形状检测和特征提取，比如增强指纹图像。本代码用matlab实现了一个二维Gabor滤波器。代码使用如下： function [G,gabout] = gaborfilter1(I,Sx,Sy,f,theta) from gaborfilter1 with different f(Frequency) and theta(Angle). for example f:0,2,4,8,16,32 theta = 0,pi/3,pi/6,pi/2,3pi/4 then for any input image like(eg. stereo.jpg) you have 6x5 = 30 filtered images. You can choose your desired angles or frequencies. You can put nominaly Sx & Sy = 2,4 or some one else. For instance I tested above example on ( cameraman.tif )(in MATLAB pictures) I = imread( cameraman.tif ) [G,gabout] = gaborfilter1(I,2,4,16,pi/3) figure,imshow(uint8(gabout)) -Gabor filters are often used for shape detection and feature extraction, such as the enhanced fingerprint image. Matlab implementation of the code is a two-dimensional Gabor filter. Use the following code: function [G, gabout] = gaborfilter1 (I, Sx, Sy, f, theta) from ' gaborfilter1' with different f (Frequency) and theta (Angle). For example f: 0,2,4, 8,16,32 theta = 0, pi/3, pi/6, pi/2,3 pi/4 then for any input image like (eg. stereo.jpg) you have 6x5 = 30 filtered images. You can choose your desired angles or frequencies. You can put nominaly Sx & Sy = 2,4 or some one else. For instance I tested above example on (' cameraman.tif' ) (in MATLAB pictures) I = imread (' cameraman.tif' ) [G, gabout] = gaborfilter1 (I, 2,4,16, pi/3) figure, imshow (uint8 (gabout))
Update : 2025-02-19 Size : 1kb Publisher : 郑碧波
[Program doc] freqest DL : 0: fingerprint image gaborfilter image enhancement frequency estimation
Update : 2025-02-19 Size : 2kb Publisher : tsion
[Program doc] ridgesegment DL : 0: Calculate ridge segment of fingerprint for gaborfilter fingerprint enhancement.
Update : 2025-02-19 Size : 1kb Publisher : tsion
[Program doc] plotridgeorient DL : 0: It display fingerprint ridge orientation for gaborfilter fingerprint image enhancement.
Update : 2025-02-19 Size : 1kb Publisher : tsion
[Program doc] ridgefilter DL : 0: It perform ridge filter of fingerprint for gaborfilter fimgerprint image enhancement.
Update : 2025-02-19 Size : 2kb Publisher : tsion