- ImgTools.areaClose filteredGreenWithoutStain (int config.StainArea)
-
- // We use the filtered image to find the dark stain.
-
- // With K-Means.
- let kmeansResults = logTime "Finding fg/bg (k-means)" (fun () -> KMeans.kmeans (filteredGreenWithoutInfection.Convert<Gray, float32>()) 1.0)
- let { KMeans.mean_bg = value_bg; KMeans.mean_fg = value_fg; KMeans.d_fg = d_fg } = kmeansResults
-
- // With K-Medians.
- (* let kmediansResults = logTime "Finding fg/bg (k-medians)" (fun () -> KMedians.kmedians (filteredGreenWithoutInfection.Convert<Gray, float32>()) 1.0) // FIXME: avoid converting this again in MainAnalysis
- let { KMedians.median_bg = value_bg; KMedians.median_fg = value_fg; KMedians.d_fg = d_fg } = kmediansResults *)
-
- let darkStain = d_fg.Cmp(value_bg * config.Parameters.darkStainLevel, CvEnum.CmpType.GreaterThan)
- darkStain._And(filteredGreenWithoutInfection.Cmp(value_fg, CvEnum.CmpType.LessThan))
-
- let marker (img: Image<Gray, byte>) (closed: Image<Gray, byte>) (level: float) : Image<Gray, byte> =
- let diff = closed - (img * level)
+ ImgTools.areaCloseF filteredGreenWithoutStain (int config.RBCRadius.StainArea)
+
+ let darkStain =
+ // We use the filtered image to find the dark stain.
+ let _, mean_fg, mean_bg =
+ let hist = ImgTools.histogramImg filteredGreenWithoutInfection 300
+ ImgTools.otsu hist
+ filteredGreenWithoutInfection.Cmp(-(float mean_bg) * config.Parameters.darkStainLevel + (float mean_fg), CvEnum.CmpType.LessThan)
+
+ let marker (img: Image<Gray, float32>) (closed: Image<Gray, float32>) (level: float) : Image<Gray, byte> =
+ let diff = img.Copy()
+ diff._Mul(level)
+ CvInvoke.Subtract(closed, diff, diff)