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Finding the circumference of a shape found by findContours

asked 2014-01-06 12:12:51 -0500

zetain gravatar image

updated 2017-03-10 02:55:32 -0500

I am trying to find a red bottle cap and want to use the findContours function together with moments. I know that i get the area of the contour when i access m00 of the moment. I would like to know if there is a way to calculate the circumference of a shape, if there is already a function that handles such a thing or if there is another attribute which i simply have to read.

I looked here but was not able to find something fitting.

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Wouldn't the circumference simply be the size() of vector<cv::Point> ?

Nghia gravatar imageNghia ( 2014-01-06 17:49:52 -0500 )edit

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answered 2015-09-08 02:59:57 -0500

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Asked: 2014-01-06 12:12:51 -0500

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Last updated: Jan 06 '14