member this.Y = this.Cy
-let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: Image<Gray, byte>) (config: Config.Config) : Cell list =
+let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: Image<Gray, float32>) (config: Config.Config) : Cell list =
if ellipses.IsEmpty
then
[]
// We reverse the list to get the lower score ellipses first.
let ellipsesWithNeigbors = ellipses |> List.map (fun e -> e, neighbors e) |> List.rev
- // 2) Remove ellipses with a high standard deviation (high contrast).
+
+ // 2) Remove ellipses touching the edges.
+ for e in ellipses do
+ if e.isOutside w_f h_f then e.Removed <- true
+
+ // 3) Remove ellipses with a high standard deviation (high contrast).
// CvInvoke.Normalize(img, img, 0.0, 255.0, CvEnum.NormType.MinMax) // Not needed.
let globalStdDeviation = MathNet.Numerics.Statistics.Statistics.StandardDeviation(seq {
for y in 0 .. h - 1 do
for x in 0 .. w - 1 do
- yield img.Data.[y, x, 0] |> float })
+ yield float img.Data.[y, x, 0] })
for e in ellipses do
- let minX, minY, maxX, maxY = ellipseWindow e
-
- let stdDeviation = MathNet.Numerics.Statistics.Statistics.StandardDeviation (seq {
- for y in (if minY < 0 then 0 else minY) .. (if maxY >= h then h - 1 else maxY) do
- for x in (if minX < 0 then 0 else minX) .. (if maxX >= w then w - 1 else maxX) do
- if e.Contains (float x) (float y)
- then
- yield float img.Data.[y, x, 0] })
+ if not e.Removed
+ then
+ let shrinkedE = e.Scale 0.9
+ let minX, minY, maxX, maxY = ellipseWindow shrinkedE
- if stdDeviation > globalStdDeviation * config.Parameters.standardDeviationMaxRatio then
- e.Removed <- true
+ let stdDeviation = MathNet.Numerics.Statistics.Statistics.StandardDeviation (seq {
+ for y in (if minY < 0 then 0 else minY) .. (if maxY >= h then h - 1 else maxY) do
+ for x in (if minX < 0 then 0 else minX) .. (if maxX >= w then w - 1 else maxX) do
+ if shrinkedE.Contains (float x) (float y)
+ then
+ yield float img.Data.[y, x, 0] })
- // 3) Remove ellipses touching the edges.
- for e in ellipses do
- if e.isOutside w_f h_f then e.Removed <- true
+ if stdDeviation > globalStdDeviation * config.Parameters.standardDeviationMaxRatio then
+ e.Removed <- true
// 4) Remove ellipses with little area.
let minArea = config.RBCMinArea