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Today I’ve modified the function getShape to have more shapes identified.
function an = getShape(im, shape)
[~,mx] = ilabel(im);
b = iblobs(im);
array = zeros(1,mx); %created a matrix for storing labels of matching blobs
for i =1:mx
switch(shape)
case 'circle'
if(b(i).circularity>=0.9 && b(i).circularity <=1.1)
array(i) = b(i).label;
end
case 'triangle'
if(b(i).circularity>=0.57 && b(i).circularity <=0.6)
array(i) = b(i).label;
end
case 'square'
if(b(i).circularity>=0.80 && b(i).circularity <=0.83)
array(i) = b(i).label;
end
otherwise
fprintf('Enter valid input');
end
exclude = array(array~=0);
end
an = b(exclude); %here the resulting blobs's features are stored
end