The maximum will generally be the lesser of 65536 or the source McImage.Type.RangeMax property plus one. For McImage.Type.PixelDataType mcpdtFloat (i.e., floating point pixel types), the maximum is always 65536. The MaxBinCount will always be at least 256.
Parmeters: SourceImage: Source McImage for the computation for global instances of McHistogram (ones with no ancestor McImage). This argument is required for global instances of McHistogram, and it must be missing for McHistogram instances with an image ancestor.