How to get FeretDiameter?

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Hi all, is there any easy way using opencv to get Fere Xfmax & Fere Xfmin? where Fere Xfmax & Fere Xfmin you can ref: http://www.sympatec.com/EN/Science/Characterisation/05_ParticleShape.html

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answered May 26 '13

Adi

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updated May 26 '13

Seems like you can find them by looking at the convex hull of your shape and making your evaluations only on the hull points.
If you want axis aligned "calipers" you may use cv::boundingRect().
If you want the smallest bounding rect, minAreaRect() might be helpful.