distance between several objects in binary image

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)?

Answer 1

[Image Analyst]

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

[Image Analyst]

All right, attached is a more general purpose one that works with multiple blobs to find all closest distance pairs.

[Faiz Yusoff]

How can i get this result using thermal image?

[Image Analyst]

What result? Is that image the "result" you want to get? Or is that your thermal image and you want to find the distance between each hot spot? Please use more words to describe exactly what you want. And it's best to start your own new question on this.

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[Faiz Yusoff]

i already asked in the question and mentioned you, if you could find it. Yes exactly i want to use the thermal image to find the distance between the each of hot spots.

[Image Analyst]

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

[Faiz Yusoff]

noted thank you so much!

Answer 2

[yanqi liu]

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

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