ImageType describes the type of an
Image. It is a
JSON object with the following attributes:
dimension: An integer that describes the dimension for the image, typically 2 or 3.
PixelType. For example, Scalar, Vector, CovariantVector, or SymmetricSecondRankTensor.
components: The number of components in a pixel. For a Scalar
pixelTypethis will be 1.