module ParasitemiaCore.UnitsOfMeasure
-[<Measure>] type px
+[<Measure>] type px // Pixel.
[<Measure>] type μm
[<Measure>] type inch
-[<Measure>] type ppi = px / inch
+[<Measure>] type ppi = px / inch // Pixel per inch.
let μmInchRatio = 25.4e3<μm/inch>