if fc < fd
then
- b <- d;
- d <- c;
- c <- b - gr * (b - a);
+ b <- d
+ d <- c
+ c <- b - gr * (b - a)
else
- a <- c;
- c <- d;
- d <- a + gr * (b - a);
+ a <- c
+ c <- d
+ d <- a + gr * (b - a)
let x = (b + a) / 2.0
x, f x
let ellipse (p1x: float) (p1y: float) (m1: float) (p2x: float) (p2y: float) (m2: float) (p3x: float) (p3y: float) : Types.Ellipse option =
- let accuracy_extremum_search_1 = 4;
- let accuracy_extremum_search_2 = 3;
+ let accuracy_extremum_search_1 = 4
+ let accuracy_extremum_search_2 = 3
// p3 as the referencial.
let p1x = p1x - p3x
let cx = cx + p3x
let cy = cy + p3y
- Some { cx = cx; cy = cy; a = r1e; b = r2e; alpha = alpha }
+ Some (Types.Ellipse(cx, cy, r1e, r2e, alpha))
else
None
(windowSize: int)
(factorNbPick: float) : Types.Ellipse list =
- let increment = windowSize / 4;
+ let increment = windowSize / 4
let r1, r2 = radiusRange
let radiusTolerance = (r2 - r1) * 0.2
- let minimumDistance = (r2 / 1.5) ** 2.0;
- let squaredDistance x1 y1 x2 y2 = (x1 - x2) ** 2.0 + (y1 - y2) ** 2.0;
+ let minimumDistance = (r2 / 1.5) ** 2.0
+ let squaredDistance x1 y1 x2 y2 = (x1 - x2) ** 2.0 + (y1 - y2) ** 2.0
let h = edges.Height
let w = edges.Width
let xDirData = xDir.Data
let yDirData = yDir.Data
- let rng = Random()
+ let rng = Random(42)
- let ellipses = MatchingEllipses ()
+ let ellipses = MatchingEllipses(r1)
for window_i in -windowSize + increment .. increment .. h - increment do
for window_j in -windowSize + increment .. increment .. w - increment do
match areVectorsValid p1xf p1yf p2xf p2yf -xDirData.[p1y, p1x, 0] -yDirData.[p1y, p1x, 0] -xDirData.[p2y, p2x, 0] -yDirData.[p2y, p2x, 0] with
| Some (m1, m2) ->
match ellipse p1xf p1yf m1 p2xf p2yf m2 p3xf p3yf with
- | Some e when e.cx > 0.0 && e.cx < (float w) - 1.0 && e.cy > 0.0 && e.cy < (float h) - 1.0 &&
- e.a >= r1 - radiusTolerance && e.a <= r2 + radiusTolerance && e.b >= r1 - radiusTolerance && e.b <= r2 + radiusTolerance ->
+ | Some e when e.Cx > 0.0 && e.Cx < (float w) - 1.0 && e.Cy > 0.0 && e.Cy < (float h) - 1.0 &&
+ e.A >= r1 - radiusTolerance && e.A <= r2 + radiusTolerance && e.B >= r1 - radiusTolerance && e.B <= r2 + radiusTolerance ->
ellipses.Add e
| _ -> ()
| _ -> ()