Access MinFeretCoordinates data in regionprop table

Question

Ely Raz 2023-11-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2052212-access-minferetcoordinates-data-in-regionprop-table

编辑： Ely Raz 2023-11-26

采纳的回答： Matt J

在 MATLAB Online 中打开

How can I access each circle MinFeretCoordinates?

clc;

clear;

a = imread("circlesBrightDark.png");

bw = a < 50;

imshow(bw)

title("Image with Circles")

stats = regionprops("table",bw,"Centroid","MinFeretProperties", "MajorAxisLength","MinorAxisLength")

stats = 3×6 table

Centroid MajorAxisLength MinorAxisLength MinFeretDiameter MinFeretAngle MinFeretCoordinates ________________ _______________ _______________ ________________ _____________ ___________________ 300 120 79.517 79.517 79 -90 {2×2 double} 330.29 369.92 109.49 108.6 108 0 {2×2 double} 450 240 99.465 99.465 99 -90 {2×2 double}

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Answer 1

Matt J 2023-11-26

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2052212-access-minferetcoordinates-data-in-regionprop-table#answer_1359992

编辑：Matt J 2023-11-26

在 MATLAB Online 中打开

For example,

stats{1,'MinFeretCoordinates'}
stats{2,'MinFeretCoordinates'}
stats{3,'MinFeretCoordinates'}

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Ely Raz 2023-11-26

编辑：Ely Raz 2023-11-26

在 MATLAB Online 中打开

Thanks. How I can I get an access to the 4 numbers in each cell content {2×2 double}? they are all in one cell (1×1 cell array)

c1 = stats{1,'MinFeretCoordinates'}

Matt J 2023-11-26

在 MATLAB Online 中打开

The same as any other cell, e.g.,

a = imread("circlesBrightDark.png");
bw = a < 50;
stats = regionprops("table",bw,"Centroid","MinFeretProperties",...
                              "MajorAxisLength","MinorAxisLength");
fourNumbers = stats{1,6}{1}
fourNumbers = 2×2
  307.5000   80.5000
  307.5000  159.5000

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Answer 2

Walter Roberson 2023-11-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2052212-access-minferetcoordinates-data-in-regionprop-table#answer_1360002

在 MATLAB Online 中打开

a = imread("circlesBrightDark.png");
bw = a < 50;
imshow(bw)
title("Image with Circles")
stats = regionprops("table",bw,"Centroid","MinFeretProperties", "MajorAxisLength","MinorAxisLength")
stats = 3×6 table
        Centroid        MajorAxisLength    MinorAxisLength    MinFeretDiameter    MinFeretAngle    MinFeretCoordinates
    ________________    _______________    _______________    ________________    _____________    ___________________

       300       120        79.517             79.517                79                -90            {2×2 double}    
    330.29    369.92        109.49              108.6               108                  0            {2×2 double}    
       450       240        99.465             99.465                99                -90            {2×2 double}    
%then
MFC = cat(3,stats.MinFeretCoordinates{:});