X-Git-Url: http://git.euphorik.ch/?p=master-thesis.git;a=blobdiff_plain;f=Parasitemia%2FParasitemiaCore%2FParasitesMarker.fs;h=b89caa68c02760b2dc4af0af0be28b48d4d12a1a;hp=e3c3ca2b3c8e17c2ddf8f5b381192a3c3bb41fe2;hb=2d712781def419c9acc98368f7102b19b064f16d;hpb=828e126c88524d3dc123abc966a132532aed118b diff --git a/Parasitemia/ParasitemiaCore/ParasitesMarker.fs b/Parasitemia/ParasitemiaCore/ParasitesMarker.fs index e3c3ca2..b89caa6 100644 --- a/Parasitemia/ParasitemiaCore/ParasitesMarker.fs +++ b/Parasitemia/ParasitemiaCore/ParasitesMarker.fs @@ -7,53 +7,60 @@ open Emgu.CV open Emgu.CV.Structure open Utils +open Histogram +open Otsu +open Morpho +open ImgTools -type Result = { - darkStain: Image // Colored pixel, it's independent of the size of the areas. It corresponds to white cells, schizontes, gametocytes, throphozoites. - nucleus: Image // Parasite nucleus. It may contain some debris. It shouldn't contain thrombocytes or larger elements. - cytoplasm: Image } // Parasite cytoplasm. +type Result = + { + darkStain : Image // Colored pixel, it's independent of the size of the areas. It corresponds to white cells, schizontes, gametocytes, throphozoites. + nucleus : Image // Parasite nucleus. It may contain some debris. It shouldn't contain thrombocytes or larger elements. + parasite : Image // The whole parasites. + } -let find (img: Image) (config: Config.Config) : Result * Image * Image = +let find (img : Image) (config : Config.Config) : Result * Image * Image = - let imgFilteredParasite = ImgTools.gaussianFilter img config.LPFStandardDeviationParasite - - let filteredGreenWithoutNucleus = imgFilteredParasite.Copy() - ImgTools.areaCloseF filteredGreenWithoutNucleus (roundInt config.RBCRadius.NucleusArea) + let imgWithoutNucleus = img.Copy () + areaCloseF imgWithoutNucleus (roundInt config.RBCRadius.NucleusArea) let darkStain = // We use the filtered image to find the dark stain. let _, mean_fg, mean_bg = - let hist = ImgTools.histogramImg filteredGreenWithoutNucleus 300 - ImgTools.otsu hist - filteredGreenWithoutNucleus.Cmp(-(float mean_bg) * config.Parameters.darkStainLevel + (float mean_fg), CvEnum.CmpType.LessThan) + let hist = histogramImg imgWithoutNucleus 300 + otsu hist + imgWithoutNucleus.Cmp (float mean_fg - config.Parameters.darkStainLevel * float (mean_bg - mean_fg), CvEnum.CmpType.LessThan) - let marker (img: Image) (closed: Image) (level: float) : Image = - let diff = img.Copy() - diff._Mul(level) - CvInvoke.Subtract(closed, diff, diff) - diff._ThresholdBinary(Gray(0.0), Gray(255.)) - diff.Convert() + let marker (img : Image) (closed : Image) (level : float) : Image = + let diff = img.Copy () + diff._Mul level + CvInvoke.Subtract (closed, diff, diff) + diff._ThresholdBinary (Gray 0.0, Gray 255.) + diff.Convert () - let nucleusMarker = marker imgFilteredParasite filteredGreenWithoutNucleus (1. / config.Parameters.infectionSensitivity) + // Nucleus. + let nucleusMarker = marker img imgWithoutNucleus (1. / config.Parameters.infectionSensitivity) - let filteredGreenWithoutCytoplasm = imgFilteredParasite.CopyBlank() + // Cytoplasm. + let imgWithoutParasite = img.CopyBlank () let kernelSize = - let size = roundInt (config.RBCRadius.Pixel / 5.f) + let size = roundInt config.RBCRadius.CytoplasmSize if size % 2 = 0 then size + 1 else size use kernel = - if kernelSize <= 3 - then - CvInvoke.GetStructuringElement(CvEnum.ElementShape.Rectangle, Size(3, 3), Point(-1, -1)) + if kernelSize <= 3 then + CvInvoke.GetStructuringElement (CvEnum.ElementShape.Rectangle, Size (3, 3), Point (-1, -1)) else - CvInvoke.GetStructuringElement(CvEnum.ElementShape.Ellipse, Size(kernelSize, kernelSize), Point(-1, -1)) + CvInvoke.GetStructuringElement (CvEnum.ElementShape.Ellipse, Size (kernelSize, kernelSize), Point (-1, -1)) - CvInvoke.MorphologyEx(imgFilteredParasite, filteredGreenWithoutCytoplasm, CvEnum.MorphOp.Close, kernel, Point(-1, -1), 1, CvEnum.BorderType.Replicate, MCvScalar()) - let cytoplasmMarker = marker imgFilteredParasite filteredGreenWithoutCytoplasm (1. / config.Parameters.cytoplasmSensitivity) + CvInvoke.MorphologyEx (img, imgWithoutParasite, CvEnum.MorphOp.Close, kernel, Point(-1, -1), 1, CvEnum.BorderType.Replicate, MCvScalar()) + let parasiteMarker = marker img imgWithoutParasite (1. / config.Parameters.cytoplasmSensitivity) - { darkStain = darkStain - nucleus = nucleusMarker - cytoplasm = cytoplasmMarker }, - filteredGreenWithoutCytoplasm, - filteredGreenWithoutNucleus + { + darkStain = darkStain + nucleus = nucleusMarker + parasite = parasiteMarker + }, + imgWithoutParasite, + imgWithoutNucleus