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- 1 img = imread('fingerprint.jpg'); % 读取指纹图像
- 2 gray_img = rgb2gray(img); % 转换为灰度图像
- 3 binary_img = imbinarize(gray_img, 'adaptive'); % 自适应二值化
- 4 filtered_img = imgaussfilt(binary_img, sigma); % 高斯滤波
- 5 thin_img = bwmorph(filtered_img, 'thin', Inf); % 细化处理
Matlab
- 1 [im, markers] = bwlabel(thin_img); % 标记连通组件
- 2 endpoints = cornermetric(binary_img,'fast'); % 端点检测
- 3 bifurcations = ... % 分叉点检测,此处需要特定算法实现
- 4 orientation = gaborFiltering(binary_img); % 方向场提取
Matlab
- 1 template_features = extractFeatures(template_fingerprint);
- 2 input_features = extractFeatures(input_fingerprint);
- 3 similarity = hammDist(template_features, input_features); % 计算汉明距离
- 4 if similarity < threshold
- 5 disp('Fingerprints match.');
- 6 else
- 7 disp('Fingerprints do not match.');
- 8 end
。同时,MATLAB也提供了专门用于图像处理和机器学习的相关工具箱,例如Image Processing Toolbox和Statistics and Machine Learning Toolbox,可以帮助开发者更方便地实现指纹识别功能。
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