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fingerprint-feature-extraction-
本文设计了一套指纹图像预处理和指纹特征提取算法, 利用方向滤波的方法对原始图像进行增强,使用改进的细化算法进行细化, 最后基于脊线跟踪的方法, 用改进的算法更为简洁而有效地避免了各种伪特征。设计的算法经Matlab 实现, 实验效果良好。(Designed a fingerprint image and fingerprint feature extraction algorithm using directional filtering the original image enhancement, improved thinning algorithm refinement, the last ridge line tracking method, the improved algorithm is more simple and effective way to avoid the pseudo-characteristic. Design algorithm with Matlab, the experiment well.)
- 2012-08-20 17:07:54下载
- 积分:1
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matlab编程技术将灰度图像归一
利用matlab编程技术将灰度图像归一化到0-255范围内(Normalize the image to 0-255)
- 2020-06-28 10:40:02下载
- 积分:1
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gridreciprial
梯度倒系数实现背景抑制,提高小目标检测的信噪比(reversing Coefficients gradient background suppression, and enhance the signal-to-noise ratio target detection)
- 2007-01-19 11:50:43下载
- 积分:1
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Hough_Process
可实现答题卡阅卷系统中的图像倾斜矫正,采用Hough进行直线检测,并根据所定位的特征直线位置计算倾斜角度,再进行图像旋转,得到校正结果(chieve answer sheet scoring system image tilt correction, performed using Hough line detection, and calculates the inclination angle in accordance with the target characteristic linear position, then rotate the image, corrected results)
- 2016-07-30 10:54:58下载
- 积分:1
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zishiyinglvbo
本文件为一个可以实现自适应滤波算法的函数。在去噪等方面有这较好应用。(This document is an adaptive filtering algorithms to achieve the function. This application has a good de-noising and so on.)
- 2015-03-27 00:50:39下载
- 积分:1
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susanandHarris
包括harris经典算法、harris-Laplace算法,以及susan算法,鲁棒性好(Harris, including the classic algorithm, harris-Laplace algorithm, as well as susan algorithm, better robustness)
- 2020-11-19 20:39:41下载
- 积分:1
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enhancement
形态学图像增强算法,包括对比度增强和边缘锐化(Morphological image enhancement algorithms, including contrast enhancement and edge sharpening)
- 2008-07-31 16:03:05下载
- 积分:1
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low_pass45
matlab编写的截断半径45时,低通滤波器对与图像的影响,画图比较滤波前后的对比图。(matlab truncation radius of the preparation of 45, the low-pass filter and image of the effect of drawing the contrast to compare before and after filtering Fig.)
- 2009-06-17 21:19:06下载
- 积分:1
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edge
通过边缘检测寻找图像上圆点的圆心坐标,可用于大量的图像处理程序(Image through edge detection to find the center coordinates of the dots)
- 2009-04-13 17:09:22下载
- 积分:1
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inexact_alm_rpca
RPCA (Robust Principal Component Analysis)是目前用于矩阵填充、图像去噪的最有效的优化方法。目前最有效的算法是ALM(Augmented Lagrange Multiplier)。ALM分为Exact ALM和Inexact ALM。 该代码是Inexact ALM,收敛速度比Exact ALM快!(RPCA (Robust Principal Component Analysis) is used for matrix filling, image denoising. It is currently the most effective optimization method. Currently the most effective method is ALM (Augmented Lagrange Multiplier). There re 2 kinds of ALM: Exact ALM and Inexact ALM. The code is Inexact ALM, faster convergence speed than the Exact ALM!)
- 2010-11-02 14:07:29下载
- 积分:1