What features I should extract for margin?

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I have two margins of two objects, one is regular and one is irregular. I would like to classify regular or irregular margin. What features I should extract for classification?

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Image Analyst
Image Analyst on 15 Mar 2017
I would use Solidity, as returned by regionprops(). It's the ratio of the area to the convex hull of the blob. You can also use the circularity which is perimeter^2/(4*pi*area) or the inverse of that.
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May on 15 Mar 2017
Thank you so much for your answer.

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