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Norm function for Point2f and Point3f

asked 2013-02-09 10:39:09 -0500

benzun gravatar image

When i try to use the norm function for the classes of the template Point_ and Point3_ I get an error that says that there is no known conversion from Point_ to InputArray. Is this a bug? Please tell me how to resolve this. I can write my own norm function but that does not solve the problem.

Also norm seems to do ok with Point but not Point2f.

I am using opencv 2.3.1 do i need to upgrade?

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answered 2013-02-10 04:22:18 -0500

berak gravatar image

as of 2.4.2, it seems to work with all sorts of points here, so an upgrade might help.

in the meantime, you can calc your own norm:

Point3f p(17,1,8);
//double l = norm(p);
double l = sqrt( p.x*p.x + p.y*p.y + p.z*p.z );
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Thanks for verifying it berak. I will mostly upgrade to newer version but now I will use my own function.

benzun gravatar imagebenzun ( 2013-02-18 12:05:25 -0500 )edit

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Asked: 2013-02-09 10:39:09 -0500

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Last updated: Feb 10 '13