let min = ref [| 0.0 |]
let minLocation = ref <| [| Point() |]
let max = ref [| 0.0 |]
let maxLocation = ref <| [| Point() |]
img.MinMax(min, max, minLocation, maxLocation)
let normalized = (img - (!min).[0]) / ((!max).[0] - (!min).[0])
let min = ref [| 0.0 |]
let minLocation = ref <| [| Point() |]
let max = ref [| 0.0 |]
let maxLocation = ref <| [| Point() |]
img.MinMax(min, max, minLocation, maxLocation)
let normalized = (img - (!min).[0]) / ((!max).[0] - (!min).[0])