Provide information about the selected xy-pixel from an image, or a hash of
  images.

Params

---

    iimage: in, required, type=image
      A 2D or 3D image array
    xpixel: in, required, type=int
      The X location on the image to fetch information from
    ypixel: in, required, type=int
      The y location on the image to fetch information from
    hsh: in, optional, type=HASH
      If a valid HASH, it should contain key/Image (string/array) pairs that
      will be described.