To calculate or estimate a center of a convex hull

I am trying to find a center or estimated center of a convex hull of a set of points. In Matlab, we can obtain the convex hull of a set points. The coordinates of the points are known. But how can we obtain a relatively precise center of their convex hull? Any idea? Thanks.

Answer 1

[Sean de Wolski]

FEX has (at least) one

[ZhG]

Thanks.

Answer 2

[Image Analyst]

Seems rather easy. Here is the formula: http://en.wikipedia.org/wiki/Centroid#Centroid_of_polygon

[ZhG]

Thanks.