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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 extrac
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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 extr
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Estimate fingerprint ridge frequency within image block
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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 enhance
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指纹图像增强，gabor滤波器，包括形态学分割，形态学细化，加窗短时傅里叶变换增强，方向图估计及平滑，纹线频率估计及平滑-Fingerprint image enhancement, gabor filters, normalization, equalization, morphological segmentation, morphological thinning, windowed short time Fourier transform enhanced estimates and s
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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.
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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
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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.
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