- // With K-Means.
- let kmeansResults = logTime "Finding fg/bg (k-means)" (fun () -> KMeans.kmeans (filteredGreenWithoutInfection))
- 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)) // 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((float value_bg) * config.Parameters.darkStainLevel, CvEnum.CmpType.GreaterThan)
- darkStain._And(filteredGreenWithoutInfection.Cmp(float value_fg, CvEnum.CmpType.LessThan))
+ 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)