Finds a rotated rectangle of the minimum area enclosing the input 2D point set

rct = cv.minAreaRect(points)

Input

• points Input vector of 2D points, stored in numeric array (Nx2/Nx1x2/1xNx2) or cell array of 2-element vectors ({[x,y], ...}).

Output

• rct Output rotated rectangle struct with the following fields:
  • center The rectangle mass center [x,y].
  • size Width and height of the rectangle [w,h].
  • angle The rotation angle in a clockwise direction. When the angle is 0, 90, 180, 270 etc., the rectangle becomes an up-right rectangle.

The function calculates and returns the minimum-area bounding rectangle (possibly rotated) for a specified point set. Developer should keep in mind that the returned rct can contain negative indices when data is close to the containing Mat element boundary.