1. An information processing apparatus for determining a height of a toner image formed on an image bearing member, comprising: a first obtaining unit configured to obtain first two-dimensional image data obtained by capturing a beam emitted by an emission unit and reflected on the toner image; a first detection unit configured to detect a first two-dimensional reflection image corresponding to a reflection image of the beam on the toner image from the first two-dimensional image data obtained by the first obtaining unit; a first identification unit for identifying a first representative position of the first two-dimensional reflection image from the first two-dimensional reflection image detected by the first detection unit; and a determination unit configured to determine the height of the toner image from the first representative position identified by the first identification unit.