X-Git-Url: http://git.euphorik.ch/?p=master-thesis.git;a=blobdiff_plain;f=Parasitemia%2FParasitemia%2FClassifier.fs;h=f0c9d01e4f6ce399df9ed3cde1815e5b8f6afd05;hp=0d2137545334091fc551d17610ff5f6f69d49243;hb=044b0ae69df3ac565432545b2fa934589016f9bd;hpb=53440e757b4a4ab2a81b0f6a5dd1a2002c0133ba diff --git a/Parasitemia/Parasitemia/Classifier.fs b/Parasitemia/Parasitemia/Classifier.fs index 0d21375..f0c9d01 100644 --- a/Parasitemia/Parasitemia/Classifier.fs +++ b/Parasitemia/Parasitemia/Classifier.fs @@ -37,13 +37,13 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: // The minimum window to contain a given ellipse. let ellipseWindow (e: Ellipse) = let cx, cy = roundInt e.Cx, roundInt e.Cy - let a = int (e.A + 0.5) + let a = int (e.A + 0.5f) cx - a, cy - a, cx + a, cy + a let w = img.Width - let w_f = float w + let w_f = float32 w let h = img.Height - let h_f = float h + let h_f = float32 h // Return 'true' if the point 'p' is owned by e. // The lines represents all intersections with other ellipses. @@ -79,13 +79,17 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: tree.Search (searchRegion e) // We only keep the ellipses touching 'e'. |> List.choose (fun otherE -> - match EEOver.EEOverlapArea e otherE with - | Some (_, px, _) when px.Length > 2 -> - otherE.Removed <- true - None - | Some (area, px, py) when area > 0.0 && px.Length = 2 -> - Some (otherE, PointD(px.[0], py.[0]), PointD(px.[1], py.[1])) - | _ -> + if e <> otherE + then + match EEOver.EEOverlapArea e otherE with + | Some (_, px, _) when px.Length > 2 -> + otherE.Removed <- true + None + | Some (area, px, py) when area > 0.f && px.Length = 2 -> + Some (otherE, PointD(px.[0], py.[0]), PointD(px.[1], py.[1])) + | _ -> + None + else None ) else [] @@ -101,24 +105,24 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: // 3) Remove ellipses with a high standard deviation (high contrast). // CvInvoke.Normalize(img, img, 0.0, 255.0, CvEnum.NormType.MinMax) // Not needed. - + let imgData = img.Data let globalStdDeviation = MathNet.Numerics.Statistics.Statistics.StandardDeviation(seq { for y in 0 .. h - 1 do for x in 0 .. w - 1 do - yield float img.Data.[y, x, 0] }) + yield float imgData.[y, x, 0] }) for e in ellipses do if not e.Removed then - let shrinkedE = e.Scale 0.9 + let shrinkedE = e.Scale 0.9f let minX, minY, maxX, maxY = ellipseWindow shrinkedE 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) + if shrinkedE.Contains (float32 x) (float32 y) then - yield float img.Data.[y, x, 0] }) + yield float imgData.[y, x, 0] }) if stdDeviation > globalStdDeviation * config.Parameters.standardDeviationMaxRatio then e.Removed <- true @@ -133,7 +137,7 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: let mutable area = 0 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 - let p = PointD(float x, float y) + let p = PointD(float32 x, float32 y) if pixelOwnedByE p e (neighbors |> List.choose (fun (otherE, p1, p2) -> if otherE.Removed then None else Some (otherE :> Ellipse, Utils.lineFromTwoPoints p1 p2))) then area <- area + 1 @@ -159,7 +163,7 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: let elements = new Matrix(maxY - minY + 1, maxX - minX + 1) for y in minY .. maxY do for x in minX .. maxX do - let p = PointD(float x, float y) + let p = PointD(float32 x, float32 y) if pixelOwnedByE p e (neighbors |> List.choose (fun (otherE, p1, p2) -> if otherE.Removed then None else Some (otherE :> Ellipse, Utils.lineFromTwoPoints p1 p2))) then elements.[y-minY, x-minX] <- 1uy @@ -179,8 +183,7 @@ let findCells (ellipses: Ellipse list) (parasites: ParasitesMarker.Result) (img: let cellClass = if float darkStainPixels > config.Parameters.maxDarkStainRatio * (float nbElement) || - float stainPixels > config.Parameters.maxStainRatio * (float nbElement) (* || - sqrt (((float sumCoords_x) / (float nbElement) - e.Cx) ** 2.0 + ((float sumCoords_y) / (float nbElement) - e.Cy) ** 2.0) > e.A * config.maxOffcenter *) + float stainPixels > config.Parameters.maxStainRatio * (float nbElement) then Peculiar elif infectedPixels.Count >= 1