A subject discriminating apparatus that discriminates a subject having an unevenness pattern on a surface of the subject, the apparatus comprising: a transparent unit that includes a supporting surface supporting the subject; a light irradiation unit that irradiates illumination light onto the surface of the subject through the transparent unit; an imaging unit that images an imaging region including at least a part of the transparent unit, and generates image data; and, a discrimination processing unit that discriminates the subject, using the image data generated by the imaging unit; and a carrier unit that carries the subject, the discrimination processing unit discriminating the subject based on discrimination image data generated by correcting subject image data using correction image data, the subject image data being generated by imaging the imaging region in a state of the subject presenting in the imaging region, and the correction image data being generated by imaging the imaging region free from the subject in the imaging region, the light irradiation unit having a circular shape, a center of the light irradiation unit being set on a central axis passing through a central portion of the transparent unit, and the light irradiation unit including a plurality of light emitting elements arranged at approximately equal intervals in a circumferential direction of the light irradiation unit, the support surface of the transparent unit constituting a part of the carrier unit, and the transparent unit including an antireflective film on a surface on an opposite side to the support surface, characterized by further comprising: a telecentric lens that is arranged such that an optical axis thereof coincides with a central axis of a circle centered on the central portion of the transparent unit; a timing sensor that includes a light emitting element and a light receiving element, the light emitting element emitting light, the light receiving element receiving the light emitted from the light emitting element through the transparent unit and outputting a timing signal when the light emitted from the light emitting element is not received; and a control unit that outputs an irradiation signal to the light irradiation unit synchronous with when the timing signal is input from the timing sensor, causing the light irradiation unit to irradiate the illumination unit. a transparent unit that includes a supporting surface supporting the subject; a light irradiation unit that irradiates illumination light onto the surface of the subject through the transparent unit; an imaging unit that images an imaging region including at least a part of the transparent unit, and generates image data; and, a discrimination processing unit that discriminates the subject, using the image data generated by the imaging unit; and a carrier unit that carries the subject, the discrimination processing unit discriminating the subject based on discrimination image data generated by correcting subject image data using correction image data, the subject image data being generated by imaging the imaging region in a state of the subject presenting in the imaging region, and the correction image data being generated by imaging the imaging region free from the subject in the imaging region, the light irradiation unit having a circular shape, a center of the light irradiation unit being set on a central axis passing through a central portion of the transparent unit, and the light irradiation unit including a plurality of light emitting elements arranged at approximately equal intervals in a circumferential direction of the light irradiation unit, the support surface of the transparent unit constituting a part of the carrier unit, and the transparent unit including an antireflective film on a surface on an opposite side to the support surface, characterized by further comprising: a telecentric lens that is arranged such that an optical axis thereof coincides with a central axis of a circle centered on the central portion of the transparent unit; a timing sensor that includes a light emitting element and a light receiving element, the light emitting element emitting light, the light receiving element receiving the light emitted from the light emitting element through the transparent unit and outputting a timing signal when the light emitted from the light emitting element is not received; and a control unit that outputs an irradiation signal to the light irradiation unit synchronous with when the timing signal is input from the timing sensor, causing the light irradiation unit to irradiate the illumination unit. a telecentric lens that is arranged such that an optical axis thereof coincides with a central axis of a circle centered on the central portion of the transparent unit; a timing sensor that includes a light emitting element and a light receiving element, the light emitting element emitting light, the light receiving element receiving the light emitted from the light emitting element through the transparent unit and outputting a timing signal when the light emitted from the light emitting element is not received; and a control unit that outputs an irradiation signal to the light irradiation unit synchronous with when the timing signal is input from the timing sensor, causing the light irradiation unit to irradiate the illumination unit.