Description: 经典的Gabor滤波算法实现，利用指纹的局部特征包括脊线频率和方向通过求卷积实现带通滤波。-Classic Gabor filtering algorithm, using local features, including fingerprint ridge frequency and orientation, through seeking to achieve band-pass filter convolution. Platform: |
Size: 1024 |
Author:heying |
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Description: 根据指纹的固有规律，提出了一套较完整的指纹图像预处理和特征提取算法。改进了指纹脊线频率求取算法和二值图像去孔噪声
算法，并提出了一种新的滤除指纹伪特征点的方法。通过对上百幅不同质量的指纹图像进行测试，获得了较好的效果。
关键词：指纹；预处理；特征提取-According to the inherent laws of fingerprints, a set of more complete fingerprint image pre-processing and feature extraction algorithm. To improve the frequency of the fingerprint ridge strike algorithms and binary image noise algorithm to hole, and filter out a new fingerprint method of pseudo-feature points. Increase by hundreds of different fingerprint image quality testing, to obtain good results. Key words: fingerprint pretreatment Feature Extraction Platform: |
Size: 200704 |
Author:martin |
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Description: 提取指纹特征点的matlab代码，很有用，利用自适应阈值进行分割，再进行频域增强，根据八邻域纹线编码进行特征提取。-Extracted fingerprint feature points of the matlab code, useful, adaptive threshold segmentation, and then increased in frequency domain, the eight neighborhood ridge coding for feature extraction. Platform: |
Size: 583680 |
Author:李辉艳 |
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Description: 针对小波变换在指纹识别中的应用，提出了一种基于小波变换的图像增强算法，利用低频系数图像在小波域估计指纹纹线方向，抑制了高频噪声对纹线方向的影响，实验表明，该算法对纹线模糊的指纹图像增强效果明显。-According to the fingerprint identification of wavelet transform in the application, and puts forward a kind of image based on wavelet transform enhancement algorithm, using image in low-frequency coefficients of wavelet domain estimate ridge directions, restrain the fingerprint of high-frequency noise, the influence of ridge directions experiments show that this algorithm for lines blurred image enhancement effect is obvious. Platform: |
Size: 201728 |
Author:抓党建 |
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Description: 指纹增强的matlab实现源代码，包含多个matlab函数文件。-ridgesegment.m identifies ridge-like regions of a fingerprint image. It also normalises the intensity values of the image.
ridgeorient.m estimates the local orientation of ridges in a fingerprint.
plotridgeorient.m plots ridge orientations calculated by ridgeorient.
ridgefreq.m estimates the local ridge frequency across a fingerprint image.
freqest.m estimates the ridge frequency within a small block of an image. This is used by ridgefreq.
ridgefilter.m enhances a fingerprint image using oriented filters.
Platform: |
Size: 10240 |
Author:tc |
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Description: 基于QT实现的指纹识别系统，包括平滑，归一化，计算方向场，计算脊线频率，计算有效区域，图像增强，二值化，细化，提取细节等关键技术源码-Fingerprint identification system based on QT implementation, including smooth, normalization, calculate the direction field, computing ridge line frequency, the effective area, image enhancement, binarization, thinning, key technology such as extraction details of the source code Platform: |
Size: 51200 |
Author:Snail |
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Description: Calculates a ridge frequency image
Function to estimate the fingerprint ridge frequency across a fingerprint image. This is done by considering blocks of the image and
determining a ridgecount within each block by a call to FREQEST.
Platform: |
Size: 1024 |
Author:Amine07 |
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Search - fingerprint ridge frequency