Greetings, how to calculate area and parameter of cell.

Answer 1

[Image Analyst]

See my Image Segmentation Tutorial: https://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862&sort=downloads_desc

In short

binaryImage = yourImage < 128;
props = regionprops(binaryImage, 'Area', 'Perimeter');
allAreas = [props.Area]
allPerimeters = [props.Perimeter];

You can add other parameters is you wish.

[alice shaarveina]

I tried, but it shows this kind of error Sir.

[Image Analyst]

Get rid of the space you have after Perimeter.

Answer 2

[KSSV]

I = imread('cell.bmp') ;
imshow(I) ;
I = imcrop(I) ;  % crop the required region 
[y,x] = find(I~=255) ;

idx = kmeans([x y],7) ;   % segment the cells 

Area = zeros(7,1) ;
P = zeros(7,1) ;
imshow(I)
hold on
for i = 1:7
    plot(x(idx==i),y(idx==i),'.','color',rand(1,3)) ;
    id = boundary(x(idx==i),y(idx==i)) ;
    Area(i) = polyarea(x(id),y(id)) ;
    d = cumsum(sqrt((diff(x(id))).^2+(diff(y(id))).^2)) ;
    P(i) = d(end) ;

end