let max = ref [| 0.0 |]
let maxLocation = ref <| [| Point() |]
img.MinMax(min, max, minLocation, maxLocation)
-
+
let mutable median_bg = (!max).[0] - ((!max).[0] - (!min).[0]) / 4.0
let mutable median_fg = (!min).[0] + ((!max).[0] - (!min).[0]) / 4.0
let mutable d_bg = new Image<Gray, float32>(img.Size)
let mutable d_fg = new Image<Gray, float32>(img.Size)
let mutable fg = new Image<Gray, byte>(img.Size)
-
+
for i in 1..nbIteration do
CvInvoke.Pow(img - median_bg, 2.0, d_bg)
CvInvoke.Pow(img - median_fg, 2.0, d_fg)
fg <- (d_fg * fgFactor).Cmp(d_bg, CvEnum.CmpType.LessThan)
-
+
median_fg <- MathNet.Numerics.Statistics.Statistics.Median(seq {
for i in 0 .. h - 1 do
for j in 0 .. w - 1 do
if fg.Data.[i, j, 0] > 0uy then yield img.Data.[i, j, 0] |> float })
-
+
median_bg <- MathNet.Numerics.Statistics.Statistics.Median(seq {
for i in 0 .. h - 1 do
for j in 0 .. w - 1 do
if fg.Data.[i, j, 0] = 0uy then yield img.Data.[i, j, 0] |> float })
-
+
CvInvoke.Sqrt(d_fg, d_fg)
{ fg = fg; median_bg = median_bg; median_fg = median_fg; d_fg = d_fg }