if s % 2 = 0 then failwith "s must be odd"
let m = new Matrix<byte>(Array2D.create s s 1uy)
let r = (float s) / (Math.Sqrt 2. + 2.) |> roundInt
if s % 2 = 0 then failwith "s must be odd"
let m = new Matrix<byte>(Array2D.create s s 1uy)
let r = (float s) / (Math.Sqrt 2. + 2.) |> roundInt
else CvInvoke.GetStructuringElement(CvEnum.ElementShape.Ellipse, Size(2 * r, 2 * r), Point(-1, -1))
use closed = scaledImg.MorphologyEx(CvEnum.MorphOp.Close, se, Point(-1, -1), 1, CvEnum.BorderType.Replicate, MCvScalar(0.0))
else CvInvoke.GetStructuringElement(CvEnum.ElementShape.Ellipse, Size(2 * r, 2 * r), Point(-1, -1))
use closed = scaledImg.MorphologyEx(CvEnum.MorphOp.Close, se, Point(-1, -1), 1, CvEnum.BorderType.Replicate, MCvScalar(0.0))