/// 'Ellipse.Alpha' is between 0 and Pi.
/// </summary>
let ellipse (p1x : float) (p1y : float) (m1 : float) (p2x : float) (p2y : float) (m2 : float) (p3x : float) (p3y : float) : Types.Ellipse option =
- let p0 = pointFromTwoLines (Types.Line(float32 m1, float32 (p1y - m1 * p1x))) (Types.Line(float32 m2, float32(p2y - m2 * p2x)))
+ let p0 = pointFromTwoLines (Types.Line (float32 m1, float32 (p1y - m1 * p1x))) (Types.Line (float32 m2, float32(p2y - m2 * p2x)))
let p0x, p0y = float p0.X, float p0.Y
let s =
let v2 = matrix [[ 1.; p2x; p2y ]]
let v3 = matrix [[ 1.; p3x; p3y ]]
- let p = (v3.Stack(v1).Stack(v2).Determinant() * v0).Stack(v0.Stack(v3).Stack(v2).Determinant() * v1).Stack(v0.Stack(v1).Stack(v3).Determinant() * v2).Transpose()
- let conicMat = p * s.Inverse() * p.Transpose()
+ let p = (v3.Stack(v1).Stack(v2).Determinant () * v0).Stack(v0.Stack(v3).Stack(v2).Determinant () * v1).Stack(v0.Stack(v1).Stack(v3).Determinant () * v2).Transpose ()
+ let conicMat = p * s.Inverse () * p.Transpose ()
let a = conicMat.[0, 0]
let b = conicMat.[0, 1]
let c = conicMat.[1, 1]
None
else
let q = (-1. / at) * (matrix [[ a * f - d ** 2.0; b * d - a * e ]; [ b * d - a * e; a * c - b ** 2.0 ]])
- let eigen = q.Evd()
+ let eigen = q.Evd ()
let eigenValues = eigen.EigenValues
let lambda = eigenValues.[1].Real
let mu = eigenValues.[0].Real
let phi' = if phi < 0. then phi + Math.PI else phi
let majorAxis, minorAxis = if r1 > r2 then r1, r2 else r2, r1
- Some (Types.Ellipse(float32 cx, float32 cy, float32 majorAxis, float32 minorAxis, float32 phi'))
+ Some (Types.Ellipse (float32 cx, float32 cy, float32 majorAxis, float32 minorAxis, float32 phi'))
let inline private vectorRotation (px : float32) (py : float32) (vx : float32) (vy : float32) (p0x : float32) (p0y : float32) : float32 =
if py > p0y then
let mutable last_i, last_j = Int32.MaxValue, Int32.MaxValue
- let currentElements = List<Point>()
+ let currentElements = List<Point> ()
let edgesData = edges.Data
let xDirData = xGradient.Data
let yDirData = yGradient.Data
- let rng = Random(42)
+ let rng = Random 42
- let ellipses = MatchingEllipses(config.RBCRadius.Pixel)
+ let ellipses = MatchingEllipses config.RBCRadius.Pixel
for window_i in -windowSize + increment .. increment .. h - increment do
for window_j in -windowSize + increment .. increment .. w - increment do
let window_j_end = if window_j + windowSize - 1 >= w then w - 1 else window_j + windowSize - 1
// Remove old elements.
- let indexFirstElement = currentElements.FindIndex(fun p -> p.X >= window_j_begin)
+ let indexFirstElement = currentElements.FindIndex (fun p -> p.X >= window_j_begin)
if indexFirstElement > 0 then
- currentElements.RemoveRange(0, indexFirstElement)
+ currentElements.RemoveRange (0, indexFirstElement)
// Add the new elements.
let newElemsBegin_j = window_j + windowSize - increment
for j = (if newElemsBegin_j < 0 then 0 else newElemsBegin_j) to (if newElemsEnd_j >= w then w - 1 else newElemsEnd_j) do
for i = window_i_begin to window_i_end do
if edgesData.[i, j] = 1uy then
- currentElements.Add(Point(j, i))
+ currentElements.Add (Point (j, i))
if currentElements.Count >= nbPickElementsMin then
let mutable nbOfPicks = (float currentElements.Count) * factorNbMaxPick |> int
let mutable nbOfValidPicks = (float currentElements.Count) * factorNbValidPick |> int
while nbOfPicks > 0 && nbOfValidPicks > 0 do
- let p1 = currentElements.[rng.Next(currentElements.Count)]
- let p2 = currentElements.[rng.Next(currentElements.Count)]
- let p3 = currentElements.[rng.Next(currentElements.Count)]
+ let p1 = currentElements.[rng.Next currentElements.Count]
+ let p2 = currentElements.[rng.Next currentElements.Count]
+ let p3 = currentElements.[rng.Next currentElements.Count]
if p1 <> p2 && p1 <> p3 && p2 <> p3 then
nbOfPicks <- nbOfPicks - 1
let p1yf, p1xf = float p1.Y, float p1.X
| _ -> ()
| _ -> ()
- currentElements.Clear()
+ currentElements.Clear ()
ellipses