how to store each ans which we get from loop in a 2-d array ?

[rows, colm]=size(Thin_image);
% Avoid the boundary pixels
bifurcation=0;
ridge=0;

for i=2:rows-1
    for j=2:colm-1
        sub_matrix=(Thin_image(i-1:i+1,j-1:j+1));
        if sub_matrix(2,2)==1
            sub_matrix=sum(sub_matrix(:))-1;
            if sub_matrix==1 
               P=fprintf('it is a ridge termination');
               i
               j
               ridge=ridge+1;
            else if sub_matrix==3
                Q=fprintf('it is a bifurcation');
                i
                j
                bifurcation=bifurcation+1;
                end
            end
        end
    end
end

i have this code i want to plot each value.

Answer 1

[Andrei Bobrov]

Thin_image = single(rand(7) > .8); % for example

out = conv2(Thin_image,ones(3),'valid');
ridge = sum(out(:) == 1);
bifurcation = sum(out(:) == 3);