MATLAB: Pore size distribution chart

Question

Hello,

I need some assistance here…

I would love to know how do you create a distribution chart based on size and number (amount) of the pores.

Thank you!

Answer 1

Use regionprops

I = imread('image.jpeg');
I1 = im2bw(I);                          % binarize image
cc = bwconncomp(I1);                    % or 'bwlabel' to separate each region
stats = regionprops(cc, 'Area');        % calculate area of each separate region
area = cat(1,stats.Area);
area(area>500) = [];                    % filter bigger blobs/regions
hist(area,20)                           % histogram of 20 groups
xlabel('size')
ylabel('number')

result