Serendipity
b8a8ff2bc6
实现内容： - 网格划分：投影分析 + 自相关估周期 + 白顶帽去背景 + 质心提取 - 三种阈值分割：人工阈值、Otsu自动阈值、迭代阈值 - TV去噪（Chambolle投影算法） - 后处理：去小连通域 + 保留最大连通域 - 完整可视化：网格叠加、阈值对比、收敛曲线、分割结果 参考MATLAB代码：NewGridAndCV/demo_GriddingAndCV.m
38 lines
811 B
Matlab
38 lines
811 B
Matlab
function indicator = checkstop(old,new,dt)
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% indicate whether we should performance further iteraions or stop
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% Copyright (c) 2009,
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% Yue Wu @ ECE Department, Tufts University
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% All Rights Reserved
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layer = size(new,3);
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for i = 1:layer
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old_{i} = old(:,:,i);
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new_{i} = new(:,:,i);
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end
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if layer
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ind = find(abs(new)<=.5);
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M = length(ind);
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Q = sum(abs(new(ind)-old(ind)))./M;
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if Q<=dt*.18^2
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indicator = 1;
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else
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indicator = 0;
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end
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else
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ind1 = find(abs(old_{1})<1);
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ind2 = find(abs(old_{2})<1);
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M1 = length(ind1);
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M2 = length(ind2);
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Q1 = sum(abs(new_{1}(ind1)-old_{1}(ind1)))./M1;
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Q2 = sum(abs(new_{2}(ind2)-old_{2}(ind2)))./M2;
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if Q1<=dt*.18^2 && Q2<=dt*.18^2
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indicator = 1;
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else
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indicator = 0;
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end
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end
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return
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