distance between several objects in binary image

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Abo 2014-12-1

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https://ww2.mathworks.cn/matlabcentral/answers/164955-distance-between-several-objects-in-binary-image

评论： Faiz Yusoff 2021-2-20

Does anyone know how can I find distance between these three animals from each other in a binary image (distance between each two red points)?

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Image Analyst 2014-12-1

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https://ww2.mathworks.cn/matlabcentral/answers/164955-distance-between-several-objects-in-binary-image#answer_160816

I already gave code for something almost identical to that here.

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Image Analyst 2021-2-20

@Faiz Yusoff I already answered this in another post of yours.

Faiz Yusoff 2021-2-20

noted thank you so much!

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yanqi liu 2021-2-20

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https://ww2.mathworks.cn/matlabcentral/answers/164955-distance-between-several-objects-in-binary-image#answer_628524

在 MATLAB Online 中打开

sir, may be use the follow code

clc; clear all; close all;
img=imread('image.jpeg');
J = rgb2lab(img);
a = mat2gray(J(:,:,2));
bw = im2bw(a, graythresh(a));
bw = imclose(bw, strel('disk', 5));
stats = regionprops(bw);
cens = cat(1, stats.Centroid);
figure;
imshow(img);
hold on;
plot(cens(:,1), cens(:,2), 'co', 'MarkerFaceColor', 'c');
dis_m = [];
for i = 1 : size(cens, 1)
    pti = cens(i,:);
    if i > size(cens, 1)/2+1
        continue;
    end
    for j = 1 : size(cens, 1)
        if i == j
            continue;
        end
        ptj = cens(j,:);
        dis = norm(pti-ptj);
        dis_m(i,j) = dis;
        plot([pti(1) ptj(1)], [pti(2) ptj(2)], 'r--', 'LineWidth', 2);
        text(mean([pti(1) ptj(1)]), mean([pti(2) ptj(2)]), sprintf('%.1f', dis), 'Color', 'm', 'FontSize', 15);
    end
end