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Compute Angle of each contour point

asked 2017-09-28 08:04:27 -0500

cjacquel gravatar image

Hello, After a Findcontour, how to compute the angle of each point of the contour ? Thank you, Christophe

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What is "angle of each point" ?

LBerger gravatar imageLBerger ( 2017-09-28 08:08:16 -0500 )edit

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answered 2017-09-28 09:09:20 -0500

mfisher gravatar image

You need three points for an angle. Or two if you consider the angular component of a vector in polar coordinates. In C++, represent a 2D point as a std::complex<double> type. Check out the std::complex, std::polar, and std::arg functions.

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Asked: 2017-09-28 08:04:27 -0500

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Last updated: Sep 28 '17