function segmentointi()
I = imread('cell.tif');
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="fea3156d-b55d-43ec-8df4-43213ee669a3"><ac:plain-text-body><!
[CDATA[[junk threshold] = edge(I, 'sobel');
]]></ac:plain-text-body></ac:structured-macro>
fudgeFactor = .5;
BWs = edge(I,'sobel', threshold * fudgeFactor);
figure, imshow(BWs), title('binary gradient mask');
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